Tungsten carbide products

We are able to provide kinds of tungsten carbide products, include tungsten carbide rod, tungsten carbide bar, tungsten carbide inserts, tungsten carbide plate and so on. Tungsten carbide is a material used for a number of industrial applications and it is characterised by its high strength, toughness and hardness. Its name derives from the Swedish for tung (heavy) and sten (stone) and it is mainly used in the form of cemented tungsten carbides. Cemented carbides (also known as hardmetals) are made by 'cementing' grains of tungsten carbide into a binder matrix of cobalt or/and nickel.
Tungsten carbide as a material can vary in carbide grain size (0.2 – 50 microns) and by binder contents (up to 30%), as well as by the addition of other carbides. By varying the grain size of the tungsten carbide and the binder content in the matrix, engineers have access to a class of materials whose properties can be tailored to a variety of engineering applications. This includes high-tech tools, wear parts and tools for the construction, mining and oil and gas sector.
Tungsten carbide products typically have a high resistance to wear and can be used at high temperatures, allowing tungsten carbide's combined hardness and toughness to significantly outperform its steel product equivalents.
Element Six tungsten carbide products
Our Hard Materials Division has been manufacturing tungsten carbide for over 60 years. We develop, produce and sell hardmetals and special tools for industries ranging from construction, mining and tunnelling, to oil and gas, textiles, automotive and agriculture. Our comprehensive unrivalled quality assurance programme ensures that all our inserts are certified to ISO 9001:2008 quality standards. For more information, please see our brochures.
As a company, we are focused on building business partnerships as our greatest strength is in developing customised solutions that create long-term advantages for our partners.

What is Tungsten Carbide

Tungsten carbide is an inorganic chemical composited by equal parts of tungsten and carbon atoms. In its most basic form, tungsten carbide is a fine gray powder, but it can be pressed and formed into shapes for use in industrial machinery, cutting tools, abrasives, armor-piercing rounds, other tools and instruments, and jewelry. In its most basic form, it is a fine gray powder, but it can be pressed and formed into shapes for use in industrial machinery, tools, abrasives, as well as men's jewelry.
The notable and rare combination of physical properties possessed by tungsten carbide makes it useful for a variety of applications. It is extremely strong and wear-resistant. There are only a few materials on earth that can be used to cut or engrave it, with industrial diamond abrasives being one of these. Its tensile strength is very high, but it is brittle under high pressures as a result. The melting point is also very high, at 5,200°F (2,870°C). To boil, it must be heated much further, to 10,382°F (6,000°C).
This compound can be made by reacting tungsten and carbon at temperatures of around 2,552 to 3,632°F (1,400 to 2,000°C). It is then often made into mills and cutting tools for industrial use, which are able to withstand heavy use and high temperatures. Military organizations also use it in armor-piercing ammunition as an alternative to depleted uranium because of its very high density and hardness level. Some sporting goods are made stronger and more durable by the addition of carbide. Trekking poles used by hikers, for instance, use carbide tips in order to gain traction on hard or rocky surfaces.
Several common consumer goods contain tungsten carbide, including razor blades and the rotating tips of ballpoint pens. It has also become increasingly common for it to be used in men's wedding bands. When used in this way, the bands have a dark hue that can be polished to a mirror-like shine. Due to the toughness of the material, these rings will remain shiny and scratch-free for decades.
Wedding bands made of carbide also contain other materials known as binders, usually metals such as nickel and cobalt. Cobalt has been known to cause allergic reactions on the skin of the wearer, so many manufacturers are turning toward substitute materials. Despite the common misconception that carbide rings cannot be removed in emergency situations, the jeweler's saws used in emergency rooms and jewelry shops can cut through any material that a ring might be made of.
It is important to note that tungsten carbide is made in nearly two dozen different grades that have different properties, depending on what each will be used for. They are almost all variations of just a few parameters: grain size, hardness, and the degree to which a binder is used. Generally, the higher the percentage of the finished product that is composed of binding materials like nickel, the softer it will be and the more it will wear. The size of the original powder grains makes slightly less difference, but can affect the amount of shock that the product will be able to withstand.

Conflict-free Tungsten Carbide in the Works

Conflict minerals is a term better known for tantalum and tin being sourced from conflict regions of the Democratic Republic of Congo and other conflict areas. But it is important to note that tungsten, among other metals and minerals is also on the conflict mineral radar. On November 26, a joint conflict-free program was announced to help companies be more transparent in their sourcing of tungsten from conflict zones. The program is a collaboration between the Conflict Free Sourcing Initiative (CFSI) and the Tungsten Industry Conflict Minerals Council (TI-CMC) and aims to help make it easier for companies to source conflict-free tungsten.
According to TI-CMC’s press release, by developing specialized framework members of the TI-CMC can opt to become validated as DRC conflict free tungsten smelters under the CFSI’s Conflict-Free Smelter Program (CFSP). The initiative is the first time the organizations can provide information regarding conflict free tungsten smelters. The program can help companies sourcing DRC tantalum just in time for the U.S. reporting regulations for conflict minerals are slated to come into effect in 2014.
This week, Metal-Pages spoke with Robert Lederer, the executive director at the Electronic Industry Citizenship Coalition (EICC), who explained that “Being able to provide companies with information about audit validated, conflict
free tungsten smelters is a real success for our initiative, companies, and crucially the people on the ground who are affected by conflict in central Africa.”
James R. Dale, vice President of Member and Industry Relations for the Metal Powder Industries Federation is pleased with the start of the program and the unified approach that is being taken to address the matter of conflict minerals. “The TI-CMC sees this collaboration as an efficient and practical way for tungsten smelters to provide confidence to their customers that their sourcing practices do not directly or indirectly support conflict in the Democratic REpublic of the COngo and adjoining countries,” Dale said in his statement.
TI-CMC compliant smelters can opt to undergo the Conflict-Free Smelter Program audit, and any compliant smelters will be publicly listed on the organizations’websites.

Sumitomo Electrics to Start Tungsten Carbide Recycling Operations

Sumitomo Electric Industries Ltd., headquartered in Osaka, Japan, has started tungsten refining and scrap recycling operations in the United States. Sumitomo Electric Carbide Inc., a subsidiary of Sumitomo Electric, and New York Tungsten LLC, a subsidiary of Buffalo Tungsten Inc., a tungsten powder producer in the United States, have established a joint venture company, Niagara Refining LLC (NIRE), to produce tungsten trioxide (WO3) from raw ore as well as from recycled material at NIRE’s facility in Depew, N.Y.
Operations are set to begin in March 2014.
Until now, A.L.M.T Corp., a subsidiary of Sumitomo Electric, has imported WO3 from China and other countries to produce tungsten carbide powder as a raw material for carbide tools. A.L.M.T. also has been engaged in tungsten scrap recycling at itsToyama, Japan, plant since 2011.
With the start of NIRE’s operations, Sumitomo Electric will produce raw materials for tungsten by both refining tungsten ore from tungsten mines and by recycling scrap collected from the market.
Sumitomo Electric says it will accelerate its activities to facilitate a stable supply of tungsten raw materials through using WO3 produced by NIRE and tungsten carbide powder production by A.L.M.T. This will allow Sumitomo Electric to control the supply chain from raw materials all the way to the finished product, which will further strengthen its competitiveness and achieve synergy through cooperation within the group, according to the company.

What is tungsten carbide inserts

Tungsten carbide inserts also called cemented carbide inserts, it is a relatively precious material. As tungsten carbide has excellent hardness and heat resistance properties, it is ideal for drilling, boring, shaping and forming metal workpieces. Also tungsten carbide inserts often used as tool tips. Most modern face mills, lathe tools and end mills use these cutting tools. Tungsten carbide inserts are typically treated as disposable materials, even though only the cutting edges of the inserts are worn when they're disposed.

Tungsten carbide inserts for such a wide range of machining processes is that the tungsten material used in creating tungsten carbide alloys is both scarce and expensive. With most tungsten reserves in the US and other Western countries exhausted, China supplies over 80% of the tungsten used worldwide. In 2005, the International Tungsten Industry Association estimated that at the current rate of global consumption, all tungsten reserves will be used up within 140 years.

Tungsten Carbide to be Contaminating the Environment

Small amounts of tungsten are released into the environment during the production of this metal. Tungsten has been found to than eventually contaminate water systems and agricultural land. For these reasons tungsten has been identified as a toxicant of great emerging concern.

Lead author of the research, Dr. Jessica Tyrrell, has expressed concerns that human exposure to tungsten is likely to increase. Tyrrell has suggested that it is important to determine more clearly how tungsten is ending up in our bodies. Dr. Nicholas Osborne, another one of the

research paper's authors, has commented about the possibility that the emergence of tungsten and other new materials as toxins is leading to the accumulation of a complex chemical cocktail

in our bodies.

It is my professional opinion that the concerns raised by the authors of this research paper should be taken seriously. I have witnessed increased concerns of people in dealing with our increasingly polluted environment in dealing with such issues as an increase in the incidence of deadly lung cancer. The emergence of new toxins, such as tungsten, associated with other serious health problems such as stroke, should raise a red flag insofar as compelling us to more carefully determine exactly what toxins people are being exposed to and in what manners

this exposure can be lowered.

High Tungsten Carbide Expsure for Stroke

High urinary tungsten concentration is associated with an increased risk for stroke, according to a review of this research published by Plus One. Due to an increase in tungsten demand over the years the potential for human exposure to the metal has increased. Although the toxicology of tungsten is not well understood at this time, evidence has suggested that there are cytoxic effects in the elemental metal and its alloys.

The situation is serious. Consider that aside from concerns about stroke, cobalt-tungsten carbide, which is used to make certain tools, dies, and wear-resistant products for oil and other industries, has shown some evidence of causing lung cancer among workers, as reported upon by EmaxHealth reporter Deborah Mitchell.

Researchers have investigated the association between tungsten and cardiovascular disease (CVD) or stroke. Elevated tungsten concentrations were found to be strongly associated with an increase in the prevalence of stroke. People with higher urinary tungsten concentrations were found to have double the risk of reported stroke. The researchers have conjectured that the pathological pathway which results from tungsten exposure may involve oxidative stress.

Buy Tungsten Carbide Drill Bits Cutters at Reasonable Price

What are Drill Bits?
Drill bits are cutting tools used to create cylindrical holes on metals, woods, glass etc almost always of circular cross-section. Drill bits come in many sizes and have many uses. Bits are held in a tool called a drill, which rotates them and provides torque and axial force to create the hole. Specialized bits are also available for non-cylindrical-shaped holes.
The shank is the part of the drill bit grasped by the chuck of a drill. The cutting edges of the drill bit are at one end, and the shank is at the other end. Drill bits Cutters online are available in standard sizes. Extensive drill bit and tap size chart lists metric and imperial sized drill bits alongside the required screw tap sizes.
How Do Drill Bits Work?
A drill bit is what actually cuts into the piece when drilling a metal or wood or a glass material. Situated at the tip of the drill string, below the drill collar and the drill pipe, the drill bit is spinning equipment that usually includes two or three cones made up of the hard components such as metal, tungsten carbide, and/or artificial or organic diamonds, and sharp teeth that that helps to drill the hole easily.
Drill bits are often used in borewell operations; in this case there are two kinds, percussion drilling and rotary drilling. Percussion drilling includes consistently dropping a heavy weight in the wellbore to chip away at the stone, rotary drilling uses a rotating drill bit to smash, cut, clean and smash the stone at the bottom of the well. The most popular choice for drilling for oil and gas, rotary drilling includes a drill bit, drill bit collar, drilling fluid, spinning equipment, hoisting equipment and prime moving service.
The prime mover is the power source for the drilling, while the hoisting devices manages raising the drill pipe to either place it into the well or raise it out of the well. Spinning devices is what sets the whole system in movement. In earlier days, drilling equipment was spun by livestock and wooden wheel, now it is done by a rotary table which is connected to square shaped hollow stem. Drill collar is connected to hollow stem which puts pressure and weight on the drill bit to make drilling easy.
Capping off the drill string is the drill bit, and covering the drilling procedure is drilling fluid, which allows providing buoyancy to the drill string, lubricating drilling process.

Allegheny Rises on Tungsten Carbide Biz Sale

Specialty metals maker Allegheny Technologies Inc. has completed its earlier announced sale of its tungsten materials business to Latrobe, PA-based wear-resistant products company Kennametal Inc. for $605 million. Shares of Allegheny moved up as much as around 2% during the trading session following the declaration of the news.
Allegheny decided to divest its tungsten materials business so that it can focus more on its core businesses - High Performance Metals and Flat-Rolled Products. The acquisition is also expected to increase Allegheny's financial flexibility and simplify its capital allocation and deployment.
Allegheny's tungsten materials business operates through roughly 1,175 employees across 14 operating facilities globally and consists of two market-leading divisions - ATI Firth Sterling and ATI Stellram. It produces tungsten powder, tungsten heavy alloys, tungsten carbide materials and carbide cutting tools. The business unit generated $338.6 million of total net revenues and $37.2 million of operating profit for the year ended Dec 31, 2012.
Kennametal paid for the acquisition partly by cash and partly by available borrowings under its existing revolving credit facility.
Allegheny's sole financial advisor and legal counselor for this transaction were The Goldman Sachs Group, Inc. and K&L Gates LLP, respectively. J.P. Morgan Securities LLC, which operates as a subsidiary of JPMorgan Chase & Co., acted as the financial advisor to Kennametal on the transaction.
Allegheny posted its third-quarter 2013 results on Oct 23. The company reported loss from continuing operations of $28.4 million (or 27 cents per share) compared with a profit of $31.3 million (or 29 cents per share) recorded a year ago. After excluding a loss of 4 cents per share due to the effects of income taxes reported in domestic and foreign jurisdictions, loss from continuing operations was 23 cents per share, narrower than the Zacks Consensus Estimate loss of 28 cents.
Allegheny recorded a loss of 5 cents per share in the reported quarter from discontinued operations that include the tungsten materials business and the iron castings and fabricated components businesses.
Revenues slipped 14% year over year to $972 million, missing the Zacks Consensus Estimate of $1,051 million. Revenues were hurt by lower demand across several end markets including oil and gas, jet engine aftermarket, electrical energy, and construction and mining. Allegheny also witnessed lower pricing for many of its products and a decline in raw materials surcharges.
Allegheny expects business conditions to remain challenging through the end of 2013 and potentially in 2014 due to the U.S. debt ceiling and other fiscal policy issues.
Allegheny is primarily focusing on cost optimization and is accelerating its cost reduction efforts. Allegheny, through this move, was successful in gross cost reductions of $123.4 million during the first nine months of 2013, a pace which is well ahead of its 2013 target of $100 million in new cost reductions. The company remains well positioned to align its production, and invenels to match the demands of its customers and end markets.

Ultra-Precision Aspheric Grinding System Simplifies Optical Productivit

The Nanotech 100UPG brings a new generation of accuracy, productivity, and simplicity in ultra-precision aspheric grinding. The system is available in either a XZ or XZB configuration. Although its primary application is the grinding of Tungsten Carbide and Silicon Carbide aspheric optical mold inserts used in glass press molding or the grinding of glass lenses directly, it also provides a 250mm diameter capacity for diamond turning applications.

Swanzey, NH — Moore Nanotechnology Systems, LLC, a global supplier of ultra-precision machining systems, introduces the all new Nanotech 100UPG Ultra-Precision Aspheric Grinder at SPIE Optifab in Rochester, NY the week of October 14th, 2013.

Nanotech has continued its history of setting new industry standards in the ultra-precision machining systems field with their latest innovation. The Nanotech 100UPG is the most technically advanced aspheric grinder available, with a great emphasis having been placed on making operation of this system easy and intuitive. Whether the application is Tungsten Carbide / Silicon Carbide precision optical mold inserts or aspheric glass lenses, this total flood coolant containment design has been engineered to add value to the process in terms of both efficiency and performance. Available in either XZ or XZB configurations, the machine offers a 100mm diameter swing capacity for optical grinding. It can also serve as an ultra-precision diamond turning system with a 250mm diameter capacity.

“One of the shortcomings with more traditional ultra-precision machining/grinding systems has been in offering customers the complete manufacturing solution. When we started this development project our goal was to not only design a superior grinding platform with state-of-the-art mechanics and control, but to also design and implement the tools and devices required for turnkey manufacturing. This included such features as in-situ automated wheel dressing and probing, in-situ metrology and correction, process monitoring with vision techniques, as well as touch probing for dimensional control. Our goal was to incorporate all this into a single system. I am pleased to say that our team here at MNTS has not only met this challenge, but they exceeded our expectations,” notes Tom Dupell, Vice President & Chief Operating Officer for Nanotech.

Allana Announces Tungsten Carbide Drill Results From Nova License

Allana Announces Drill Results From Nova License And Continues To Expand Potash Mineralization

Allana Potash Corp. announces drill results from 20 core holes completed on the Nova license acquired by the Company in 2012. The Company initiated its program late in 2012 and completed 20 core holes totaling 5119 metres. Analytical results have been compiled and potash mineralization extends both south and west from Allana's core license onto the Nova license. Drilling highlights include hole DM-13-29 which returned 2.50 metres of 28.3% KCl in the Sylvinite Zone, hole DM-13-30 which yielded 1.90 metres of 34.5% KCl in the Sylvinite Zone and hole DM-13-37 which returned 4.50 metres of 21.6% KCl in the Sylvinite Zone.

Farhad Abasov, President and CEO, commented "we are very pleased with the results from the exploration drilling on the Nova license. Drill results indicate the extension of Sylvinite and Kainitite mineralization south and west of the original Allana license with Sylvinite primarily located in the west, which management believes has the potential to be incorporated into our mining plan. Results indicate that kainitite is widespread, which we believe may add significantly to potential future mineral resource estimates."

Allana-Nova Drilling Results

Prior to Allana's acquisition of Nova, Nova completed 21 drill holes on its exploration license totaling 2122 metres. Nova drilling was concentrated on the western portion of its license and the program was designed to delineate extensions of the Musley Deposit as well as outline the limits of the evaporite basin. Generally, the Allana drillholes on the Nova ground intersected similar stratigraphy to that outlined by drilling on the Allana license. Drilling has now defined the western edge of the basin where Sylvinite distribution is variable however Kainitite is present throughout the basin. All holes were drilled vertically and true widths of the potash zones are estimated to be very similar to drilled widths due to the flat-lying nature of the potash horizons.

Drill results have been incorporated into the Allana database and Allana expects to incorporate Nova results into an updated mineral resource estimate in the coming months.

Tungsten Carbide Ball for Livescribe 3 and bluetooth smart pen

Recently smart pen announced by Livescribe has cloaked the microphone, speakers and the OLED screen unlike the previous versions and requires an Apple phone or tablet to function.

Liverscribe 3 works in a combination with special dot paper to capture everything written via an integrated infrared camera. Through a Bluetooth connection to an iOS device running the Livescribe+ mobile app, the Livescribe 3 allows everything written to be instantly transferred to a connected iOS device’s display. It has also replaced the Wi-Fi connectivity of the last version –Sky – Bluetooth Low Energy (BLE), also called Bluetooth Smart.

Bluetooth is used to wirelessly pair the Livescribe 3 with an iPhone or iPad, and the microphones on the Apple device are used to actually record audio. The Bluetooth pairing offers benefits such as faster wireless syncing between the pen and other devices, with reduced battery drain (up to 14 hours) compared to the Wi-Fi Sky pen. Anything you write will be showed up on your connected iPad after only a second or so.

One can recharge using the micro USB charging cable, with the standard black and chrome Livescribe 3 pen also coming bundled with a 50-sheet starter book of dot paper and a black tungsten carbide medium-tip ink cartridge. The black and dark chrome Pro Edition smartpen comes with a leather smartpen folio, 100-sheet hardbound dot paper journal. Livescribe is the company’s most mainstream product yet and is available for $149.95. It is a great pen that has a lot of digital features.

Tungsten carbide products

Tungsten carbide is a material used for a number of industrial applications and it is characterised by its high strength, toughness and hardness. Its name derives from the Swedish for tung (heavy) and sten (stone) and it is mainly used in the form of cemented tungsten carbides. Cemented carbides (also known as hardmetals) are made by 'cementing' grains of tungsten carbide into a binder matrix of cobalt or/and nickel.
Tungsten carbide as a material can vary in carbide grain size (0.2 – 50 microns) and by binder contents (up to 30%), as well as by the addition of other carbides. By varying the grain size of the tungsten carbide and the binder content in the matrix, engineers have access to a class of materials whose properties can be tailored to a variety of engineering applications. This includes high-tech tools, wear parts and tools for the construction, mining and oil and gas sector.
Tungsten carbide products typically have a high resistance to wear and can be used at high temperatures, allowing tungsten carbide's combined hardness and toughness to significantly outperform its steel product equivalents.

Tungsten Carbide Coatings

Here at Chinatungsten Online, the most frequently applied wear resistant coating is tungsten. Using our different HVOF systems allows consistent production by choosing powdered feedstock best for your application. Our spray rooms are designed to handle different components, utilizing large turning capabilities with equipment from robots and X-Y gun manipulators to overhead cranes; and specialty-built fixtures for handling repetitive production and complex masking fixtures to protect uncoated areas.
In the continuous-combustion high-velocity oxyfuel HVOF thermal spray process, a fuel gas and oxygen are combusted in a high-pressure chamber, reaching temperatures of 4500 to 5600°F. The hot, high-pressure gas is ejected through a small-diameter nozzle and accelerated down a long barrel at supersonic speeds. Powder, such as Tungsten Carbide is also injected into the nozzle, where the particles mix with the speeding gases and reach velocities of 2500 ft/s to more than 3000 ft/s.
The high speeds impart tremendous amounts of kinetic energy to the particles. Remember that kinetic energy equals half the mass of the particle times the square of its velocity (KE= 1/2 mv2). When these highly energetic particles strike the substrate, the velocity goes to zero and the kinetic energy is absorbed by the particle, causing it to melt in a millisecond. Subsequent particles arrive almost simultaneously, rapidly building up the coating. The result is a very dense adhesive/cohesive coating. It has comparatively very high bond strength, low residual stress, low porosity (typically less than 0.5%), and high wear resistance.
Here at ASB Industries, the most frequently applied powder is tungsten carbide with a cobalt binder. Tungsten carbide melts at 5200°F, and is extremely hard, with Vickers hardness number 2242. On the other hand, cobalt has a melting point of 2460°F, and Vickers hardness number is 1043. Coating properties such as hardness, wear resistance, and strength depend primarily on the grain size and volume fraction of the tungsten carbide particles. Therefore, WC-Co coatings can be designed to provide the specific properties needed for an application by controlling the grain size of the tungsten carbide particles and their volume relative to cobalt. In general, cobalt content ranges from 5 to 30 wt%, and WC grain sizes range from one to eight microns, although for some applications grain size may reach 30 microns.
ASB Industries’ on-site and in-house capabilities in paper mills allow a long lasting carbide grip surface applied to roll surfaces for different processing stages during paper production. ASB will adapt carbide spraying parameters using our flame spray equipment to work best with the paper quality and thickness.
Erosion, abrasion and corrosion are considerations for choosing different chemistries and binder materials. Tungsten Carbide is typically used for extreme wear conditions in almost every industry.
In steel and metals production, tungsten carbide coatings, along with tungsten weld coatings, are widely used from ore production through finished product. A multitude of accepted applications show dramatic maintenance cost reductions and improved production quality.
In power generation where coal is the fuel source, components are required to be protected from extreme abrasion under demanding production seasonal schedules. ASB Industries has a wide variety of solutions incorporated in many critical components.
If your application requires a specific finish, then ASB Industries in most cases will be able to complete your carbide coated surface to varying surfaces finishes or Ra. From large to small components, ASB Industries will most likely be able to finish your project with our diamond grinding and diamond super finishing equipment.

What is Tungsten Carbide or Hard Metal?

Tungsten Carbide is often referred to as a Hard Metal due to it’s very high hardness in relation to other metals.
Typically a Tungsten Carbide Hard Metal can have a hardness value of 1600 HV, whereas mild steel would be in the region of 160 HV a factor of 10 lower.
Although called a hard metal, Tungsten Carbide is actually a composite material with hard particles of Tungsten Carbide embedded in a softer matrix of metallic Cobalt .
What is the Chemical Formula for Tungsten Carbide?
The chemical formula for Tungsten Carbide is WC.
What is the History of Hard Metals or Tungsten Carbide?
Tungsten Carbide was originally developed in Germany in the 1920’s as there was a requirement for die materials that were able to stand up to the high wear encountered in the drawing of tungsten filaments for light bulbs
How is Hard Metal or Tungsten Carbide Made?
Tungsten Carbide Hard Metals are primarily produced using a Powder Metallurgy process, whereby the powdered forms of tungsten carbide and cobalt are mixed using ball mills, a binder material is added to hold the powders together during the next stage of the process which is compaction or pressing.
During the compaction processes, hydraulic presses or isostatic presses are used to compact the powders into a shape which approximates the design of the finished product.

Tungsten Carbide Sleeve

We have many kinds of tungsten carbide bushing products, with good materials, excellent performance and good wear resistance. To make our products high machining accuracy, keeping operation precision, prolong the life time of rolling axletree, we strictly control our quality, and have a high reputation in our industry. We produce many OEM carbide sleeves for our clients all over the world.

Application:

Tungsten Carbide Shaft Sleeves are often used in water pump, oil pump and other pumps, especially used for high pressure or corrosion resistance pumps, flow restrictors, servo seat.

Coated Cemented-Carbide Grade is suited for steel turning

GC4325 indexable inserts are designed for increased cutting speeds and longer, more predictable tool life with high reliability over extended broad ISO P25 application area. Insert substrate and coating withstand elevated temperatures, reducing effect that causes excessive wear. Capability to maintain insert edge line at high temperatures promotes cutting speeds and security through more predictable and extended tool life.

This latest innovation in tool material provides a new, higher potential for increasing cutting speeds and a longer, more predictable tool life with very high reliability, over an extended broad ISO P25 application area.

Predictability has become increasingly important in today’s machining, especially where there is limited supervision in production. There are always a number of threats to the edge line remaining intact long enough in steel turning. One challenge is the breadth of the ISO P25 application area, which includes several very different materials, from ductile low-carbon steels to high-alloy hard steels, bar material to forgings, castings to pre-machined parts. The advances with the new grade, GC4325, will actually help users resist holding back on cutting-data levels. The grade provides extremely high process security through its ability to retain an intact edge line.

Withstands higher temperatures.

The insert substrate and coating of GC4325 have been developed to better withstand high temperatures, thereby reducing the effect that causes excessive wear.

As a bonus, the grade is highly capable of maintaining the insert edge line at higher temperatures, which translates into the capability for higher cutting speeds with added security through more predictable, longer tool life.

With all this in mind an average productivity increase of 30 percent from today’s existing levels is now available. The grade represents a new generation of performance with coated cemented-carbide indexable inserts, providing a new potential to be tapped throughout a large and diversified application area.

Tungsten Carbide Ring is Offering 15 Percent Off

A retailer of tungsten carbide rings and wedding bands, is offering 15 percent off until October 31st using coupon code rings15 at the time of checkout. The company hopes that adding a coupon code will help customers ease the expense of pricy weddings. The coupon code can be used towards any in stock purchases of tungsten rings, watches or accessories. The coupon code cannot be applied towards special orders or customizations including inner diameter engraving or fingerprint engraving.

Forever Metals prides the website as carrying one of the largest collections of tungsten rings and wedding bands on the internet. The tungsten manufacturer features a wide array of styles from classic to more unique. Classic styles consist of simple dome or flat rings coming in many widths, finishes and colors. The more unique styles consist of carved tungsten, laser engraved and sculpted rings. Forever Metals also carries the largest in stock collection of Celtic tungsten wedding bands on the internet including the bestselling Claddagh ring and many knot works rings to choose from. The rings are manufactured with both men and women in mind featuring widths as thin as 2mm and sizes starting at size 4. The price point ranges between $99 and $259 allowing customers to choose a high quality ring at a low price.

Chinatungsten Online encourages customers to shop with confidence when shopping on the website. The website is completely online secured and each purchase comes with a lifetime warranty at no additional fee. The company wants customers to feel at ease with their purchase and tell others about a good experience they may have had.

About Forever Metals, LLC:

Forever Metals was founded in early 2005 by Gary Camphausen who was looking for tungsten rings to purchase for his wedding day. There were many rings found both online and in retail stores however all the styles were traditional and lacked a unique touch. The idea was born to create an affordable line of rings that was both traditional and unique at the same time and the styles still continue to grow today.

ATI’s Tungsten Carbide Materials Business

Kennametal Inc. has signed a definitive agreement to acquire the Tungsten Materials Business of Allegheny Technologies Incorporated for $605 million. ATI’s Tungsten Materials Business, with approximately $340 million in annual sales, is a producer of tungsten metallurgical powders, as well as tooling technologies and components. The business has approximately 1,175 employees across 14 operating facilities globally and consists of two divisions: ATI Firth Sterling and ATI Stellram. The transaction has been approved by both companies’ boards of directors and is expected to close before the end of the calendar year, subject to customary regulatory approvals and closing conditions.

The acquisition accelerates Kennametal’s plans to expand capacity and develop an advanced tungsten carbide recycling facility in the U.S. The company also estimates that this will reduce planned capital expenditures by approximately $30 million to $35 million and expects to achieve economy of scale 6 to 8 years earlier than prior projections.

In addition, the acquisition will further augment Kennametal’s tooling portfolio in the areas of metal cutting and metal finishing technologies, through brands such as Stellram Products, Garryson Products and Landis Products.

The company forecasts potential annual run-rate cost synergies ranging from $30 million to $40 million, which it anticipates will be realized via productivity improvements, operational efficiencies and raw-material cost benefits.

Tungsten Carbide Nozzles

Big A’s Place, the online leader in sandblasting parts, now has Trigger Operated Sand Blaster Guns in stock. The new guns at Big A’s Place are all available with Tungsten Carbide Nozzles, Boron Nozzles and Ceramic Nozzles.
At Big A’s Place, customers can also purchase sand blasters, sandblasting helmets and sandblasting cabinet gloves. At Sandblaster-Parts.com, clamps for sandblast gloves, sandblast hose couplers and sandblaster nozzle holders and air valves are also on sale. Sandblasting cabinet parts and sandblaster reclaimers and accessories as well as vacuum heads are also available. Sandblaster filter cartridges and dust bags and sandblaster cabinet glass and Sandblaster moisture traps and moisture separators are also available at Sandblaster-parts.com.
Pressure gauge needles, blast nozzle and orifice gauges and even leather, double-palmed sandblasting gloves, for only $12.25, can be found at Big A’s Place / Sand Blaster Parts. At Sandblaster-Parts.com, customers can also find competitive prices that give Big A’s Place / Sand Blaster Parts an edge over the competition. CLIP safety clips are also available at Big A’s Place / Sand Blaster Parts.
Customers can find detailed product information at Big A’s Place. There is even an explanatory chart detailing how to size sandblasting gloves as well as a sandblasting chart to explain how to size a pressure nozzle. Nova Sandblasting Helmets are also sold at Big A’s Place / sandblaster-parts.com. Big A’s Place can accommodate customers in any part of the United States as well as Canadian customers. Customer service representatives are also available by phone or email in order to answer every customer’s question. Whatever the need, Big A’s Place can deliver.

ATI Announces Sale of Tungsten Materials Business

PITTSBURGH-Allegheny Technologies Incorporated announced today that it has reached an agreement to sell its tungsten materials business to Kennametal Inc. for $605 million. The transaction, which is subject to customary closing conditions and regulatory approvals, is expected to be completed during the fourth quarter 2013. As a result of this agreement, ATI will report the financial results of the tungsten materials business in discontinued operations pending completion of the transaction.
The tungsten materials business, called ATI Tungsten Materials, is part of ATI's Engineered Products segment. ATI's tungsten materials business has approximately 1,175 employees and produces tungsten powder, tungsten heavy alloys, tungsten carbide materials, and carbide cutting tools. For the year ended December 31, 2012, ATI's tungsten materials business generated total net revenue of $338.6 million, operating profit of $37.2 million, and EBITDA of $45.3 million.
"ATI's growth opportunities are in our High Performance Metals segment businesses, including precision forgings and titanium investment castings, and in our diversified Flat-Rolled Products segment business," said Rich Harshman, ATI Chairman, President and Chief Executive Officer. "The sale of our tungsten materials business to Kennametal, a recognized global leader in tungsten-based wear-resistant products, provides ATI with increased financial flexibility and simplifies capital allocation and deployment.
"This sale strengthens our focus on ATI's core strategic businesses and emphasizes the technical, commercial and operating synergies between our High Performance Metals and Flat-Rolled Products segment businesses.
"We also believe that the acquisition of the tungsten materials business by Kennametal improves the competitive position of this business, resulting in a stronger business for the benefit of customers and employees."
Goldman, Sachs & Co. acted as sole financial advisor to ATI and K&L Gates LLP is ATI's legal counsel in connection with the transaction.
This news release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements are based on management's current expectations and include known and unknown risks, uncertainties and other factors, many of which we are unable to predict or control, that may cause our actual results, performance or achievements to materially differ from those expressed or implied in the forward-looking statements. Additional information concerning factors that could cause actual results to differ materially from those projected in the forward-looking statements is contained in our filings with the Securities and Exchange Commission. We assume no duty to update our forward-looking statements.

Allegheny Technologies’Tungsten Materials Business

Kennametal Inc. announced today that it has signed a definitive agreement to acquire the Tungsten Materials Business of Allegheny Technologies Incorporated for $605 million. ATI’s Tungsten Materials Business, with approximately $340 million in annual sales, is a leading producer of tungsten metallurgical powders, as well as tooling technologies and components.
The business has approximately 1,175 employees across 14 operating facilities globally and consists of two market-leading divisions: ATI Firth Sterling and ATI Stellram. The transaction has been approved by both companies’ boards of directors and is expected to close before the end of the calendar year, subject to customary regulatory approvals and closing conditions.
“ATI’s Tungsten Materials Business brings vital strategic assets that are an excellent complement to Kennametal, especially given our common focus on operational excellence and industry-leading material science,” said Kennametal Chairman, President and CEO Carlos Cardoso. “The addition of the expanded material and tooling technologies of ATI’s Tungsten Materials Business will enable us to offer more to our customers around the world. We look forward to building on our respective strengths to accelerate growth while generating even greater value for our business and ultimately our shareholders.”
This acquisition is aligned with Kennametal’s growth strategy and positions the company to further diversify its portfolio. The company expects to capitalize on the material technology capabilities, engineered components and world-class tooling products of ATI’s Tungsten Materials Business to expand its presence in the aerospace and energy markets.
The acquisition will advance Kennametal’s core strategy that seeks to diversify the company’s tungsten sourcing to balance supplies, costs and access to raw materials, including those produced from recycled products. The ability of ATI’s Tungsten Materials Business to produce critical materials from recovered tooling and scrap will enhance Kennametal's material sourcing and development capabilities to support the company's growth initiatives. The acquisition accelerates Kennametal’s previously announced plans to expand capacity and develop an advanced tungsten carbide recycling facility in the United States to serve global markets. The company also estimates that this will reduce planned capital expenditures by approximately $30 million to $35 million and expects to achieve economy of scale six to eight years earlier than prior projections.
In addition, the acquisition will further augment Kennametal’s tooling portfolio in the areas of metal cutting and metal finishing technologies, through brands such as Stellram Products, Garryson Products and Landis Products.
The acquisition is expected to generate significant synergies. The company forecasts potential annual run-rate cost synergies ranging from $30 million to $40 million, which it anticipates will be realized via productivity improvements, operational efficiencies and raw-material cost benefits. Kennametal also plans to pursue revenue synergies by extending the sales of ATI’s Tungsten Materials Business globally through its existing sales channels, while building further on its strategic talent and technologies.
The transaction is structured as both an asset and stock purchase with Kennametal benefiting from the “step-up” in the tax basis of the acquired assets and the resulting tax deduction. Management estimates the cash tax benefit of the step-up to have a net present value of approximately $60 million to $70 million.
Kennametal plans to fund the acquisition through a combination of cash on hand and available borrowings under its existing revolving credit facility. The company expects the acquisition to be neutral to earnings for the remainder of its fiscal year 2014. Adjusted for the estimated annual run-rate synergies and tax asset, the implied acquisition multiple represents approximately 7.2x EBITDA based on historical earnings.
J.P. Morgan Securities LLC acted as exclusive financial advisor to Kennametal on the transaction.

Kennametal to Buy Tungsten Biz of ATI

Kennametal Inc. is again active on the acquisition front having signed an agreement to acquire Allegheny Technologies Incorporated 's Tungsten Materials Business. The transaction, subject to regulatory approvals, is expected to be complete by the end of calendar year 2013.    
The acquisition has been valued at $605 million, which Kennametal intends to pay using its available cash and borrowings under its existing revolving credit facility.
Allegheny Technologies' Tungsten Materials Business is among the leading producer of tungsten metallurgical powders and also provides tooling technologies and components. The business has two divisions namely, ATI Firth Sterling and ATI Stellram.
Post the completion of the acquisition, the acquired business brings with it roughly $340 million of annual revenue generation capacity and 1,175 employees operating from 14 facilities worldwide.
Kennametal has over time preferred accretive acquisitions and dispositions of non-core assets as its primary tool to shift its business portfolio toward favored growth markets. This current acquisition also aligns with the company's long-term growth strategies and will enable diversification of product portfolio, expansion in the aerospace and energy end markets and strengthening of the tooling business.
Annual run-rate cost synergies within $30-$40 million range and cash tax benefits within $60-$70 million range is expected to be realized post the completion of the acquisition. Further, the acquisition also accelerates Kennametal's plan for an advanced tungsten carbide facility. Further, the company has lowered its capital spending plan from $65 million to $35 million. For the fiscal year 2014, the acquisition is anticipated to be neutral to earnings.  
Earlier to this announcement, Kennametal had acquired Emura that enables the company to diversify and balance its tungsten sourcing capabilities.
Kennametal Inc. currently has a market capitalization of $3.6 billion. The stock carries a Zacks Rank #3 (Hold). Other stocks to watch out for in the industry are Actuant Corporation ( ATU ) and Sandvik AB ( SDVKY ), each with a Zacks Rank #2 (Buy).

Tungsten Carbide Materials for Aircraft Seal Applications

Oil-free, self-lubricating mechanical carbon materials possess a combination of characteristics that make them suitable for use in both commercial and military aircraft seal applications.
The materials are self-lubricating, self-polishing, and dimensionally stable, which insures a good sealing mate. They are heat resistant and have a high thermal conductivity, which helps conduct frictional heat away from the sliding surface. In addition, these materials are readily machinable to exacting aerospace dimensional tolerances, and they can be supplied lapped and polished to a flatness specification of one helium light band. In aerospace applications, modern mechanical carbon materials are being used in aircraft gear boxes, air turbine motor starters, and main shaft seals for both aircraft turbine engines and aircraft auxiliary power units (APUs).
These self-lubricating materials are composed of fine-grained, electrographite substances that are impregnated with proprietary inorganic chemicals to improve their lubricating qualities and their oxidation resistance. They have a low coefficient of friction, low wear rate at high sliding speed, high thermal conductivity, and they resist oxidation in high temperature air. These properties also suit other high speed, rotating equipment, such as high-speed rotary gas compressors and steam turbines.
Aircraft gearboxes reduce the main engine shaft’s rotational speed from as high as 26,000 rpm down to about 3,400 rpm, so the shaft can drive such system components as hydraulic pumps, generators, and air conditioning compressors. To seal the oil lubricant within the gearbox and protect it from leaking out at the point where the shaft enters and exits the gearbox, most aircraft gearboxes use face seals. The face seals usually contain a carbon-graphite stationary ring and a silicon carbide or tungsten carbide rotating ring. The rings that make the dynamic face seal are both lapped flat and are held together with springs or magnets so that liquids cannot flow between the ring faces even though they are spinning against each other at high speed.
The two rings in relative motion that make the dynamic seal are sealed to the shaft or the gear box housing with static seal rings such as polymeric O-rings. Seal designers use spiral grooves, straight grooves, and wedges to channel or pump a thin film of air or oil between the two sliding sealing faces. This creates aerodynamic or hydrodynamic lift, which reduces the friction and wear of the seal faces.
For example, Metcar Grade M-45, manufactured by Metallized Carbon Corporation, is often used successfully as the stationary ring. This material is suited for these shaft seals because it is impermeable and thus able to support an aerodynamic film. It also has the ability to run at high speed with low friction and low wear.
Air turbine motor starters typically use the same carbon-graphite versus silicon carbide or tungsten carbide dynamic face seal materials used in gearbox seals, but the sliding speed is much higher. These air turbine motor starters are actually small turbines that use the exhaust gas from the auxiliary power unit to create the power necessary to start the main engines. The shaft speed on air motor starters can be as high as 180,000 rpm, or a sliding speed of about 1000 feet/second, which is nearly the speed of sound. The seals are designed by aircraft seal manufactures with wedges and gas flow passages to produce aerodynamic or hydrodynamic lift-off. Metcar Grade M-45 is used in air motor starter seals because of its outstanding self-lubricating qualities at the required operating conditions.
Face seal rings, with carbon-graphite primary rings, and carbon-graphite circumferential seal rings are used in aircraft engine main shaft seals to control the air flow and combustion gas flow inside the engine. They also seal the oil lubricant in the main engine bearings that allow the compressor shaft and the combustion gas turbine shaft to rotate freely. Both circumferential and face type seal ring are used.
For circumferential main shaft seal rings, carbon-graphite segments that fit with close end clearance in slots in the stationary housing are used. The carbon-graphite segments are tensioned against a ceramic or hard metal coating on the rotating shaft using a “garter” spring.
Lifting wedges and machined configurations are used to create lift so that these seals run on an aerodynamic or hydrodynamic film. Rotating speeds can be as high as 26,000 rpm, and temperatures in the seal rings can reach as high as 800 degrees Fahrenheit.

Zimbabwe tungsten project to start production in 2014

Aim-listed Premier African Minerals is aiming to start low-cost production at its flagship RHA tungsten project, in the Kamativi tin belt, in Zimbabwe, during the second half of 2014, following positive results from a recent technical assessment.
Underground mine development was expected to start once openpit production had started, the company said on Monday.
The technical assessment followed an earlier preliminary economic assessment (PEA) and concept mining report, which confirmed the economic viability of the site supporting a low-capital 192 000 t/y tungsten-bearing ore operation with a six-year mine life.
The recently completed technical assessment included further optimisation work that had been undertaken by independent mining consultant Royal HaskoningDHV and a Whittle computer design optimisation on the proposed openpit at RHA.
The Whittle optimisation indicated a revised lower stripping ratio of 6.2:1, compared with 10:1 previously, and an optimal pit life of around 16 months, compared with the previous estimate of 12 months, the company stated.
“In line with this, we are in active discussions with potential funders for the project and possible offtake partners as one route to fast-track RHA towards production,” Premier said.
The new pit design was expected to increase the project’s undiscounted pretax net present value (NPV) to $120-million, up from $118-million previously.
"I am delighted to announce this positive upgrade to our recent PEA and concept mining study that further highlights the attractiveness of our flagship RHA tungsten project,” Premier CEO George Roach commented.
“With a revised NPV of $120-million and a significantly increased internal rate of return before tax of 378% now projected, coupled with the low-capex nature of the project with estimated costs of $13.5-million, excellent infrastructure, low-strip ratio and a relatively simple processing route expected, we approach the next stages of development with confidence," he added.
Meanwhile, Premier also, on July 5, received final approval from the TSX-V for the sale of one of its Togo subsidiaries, as well as its Mali subsidiaries to TSX-listed AgriMinco. The Premier subsidiaries held exploration permits for phosphates, clays and potash.
Following the transaction, the company now held 120-million new shares in AgriMinco, representing about 42% of the issued shares. Of these shares, 100-million would become tradable on November 1, while 20-million would remain in escrow pending the fulfilment of certain technical requirements imposed by the TSX-V.
“Through our shareholding in AgriMinco, we gain exposure to its highly prospective Danakil potash property in Ethiopia in which it has a 30% interest. AgriMinco has a free carry to scoping study and a total spend of $7-million. The operators and 70% owners of the Danakil property, Circum Resources, plan to rapidly advance exploration on the property,” Premier stated.

How to Break a Tungsten Carbide Ring

You may have heard that a tungsten carbide ring is unbreakable. This would have some good and bad effects. Having a wedding ring that would never bend, crack, scratch, or get marred would be a benefit. Tungsten carbide rings are not indestructible. In case of emergency, you can remove them with relative ease. Just don't drop your wedding band on a hard surface - any Tungsten Carbide band (no matter who makes it) is brittle. It will crack, chip or even shatter upon impact with a hard surface or object.

Tungsten Carbide

We use Tungsten Carbide everyday in a variety of products, for use in a number of different applications throughout many industries. It is an incredibly versatile and useful material due to its unique properties which are outlined below:
General
When evaluating or finding equivalents of Tungsten Carbide grades the important criteria is to specify two of three factors. Binder content, hardness or grain size. In straight matrix materials any two of these will match the third. A 15% binder with hardness of 88.0 RA would have to be fine grain material whereas with a hardness of 86.0 RA would need a very coarse grade to achieve it. Specifying cobalt binder only can be a dangerous game. Take control of each situation and ensure you know what you are using and why so that consistency of specification can be obtained from whatever source. We can achieve hardness differential on 15% cobalt: purely by varying the grain size, that would need a spread of 11% cobalt over same gain size materials. I.e. We can manufacture 15% material with a hardness of a 6% or 18% grade just by using sub micron or coarse grains !!
The Tungsten Carbide properties chart below shows basic data for each grade manufactured. All specifications are designed and engineered for a purpose and rigid controls are kept throughout production processes to ensure adherence to grade engineering.
Quality control properties such as hardness, density, and minimum transverse rupture strength were determined from tests made on each batch of powder before it is used in the manufacturing process. Other properties such as Young's modulus of Elasticity , Poisson's ratio , Coefficient of Thermal Expansion, Thermal Conductivity and Electrical Conductivity are used by engineers for design calculations. Properties such as compressive strength, grain size and abrasion resistance give the designer additional information about the suitability of the grade for the part being designed.
Binder
The binder in most grades of Tungsten Carbide is cobalt. The other binder used is nickel. The binder is added as a percentage by weight varying from 3% to 30%. The amount of binder used is a very important factor in determining the properties of each grade. As a rule of thumb the lower the cobalt content the harder the material will become. However variation in grain size and additives can upset this rule.
Density
Determined by comparison of mass with volume and usually stated in g/cm3.
Grain Size
The majority of grades we machine are made with standard size grains varying between 1 and 3 microns in size. Using larger grains of 2 - 6 microns will greatly increase the strength and toughness of the material because the larger grains interlock better. The trade off is that larger grain materials do not offer as much resistance to wear as finer grain sized materials. Sub micron materials that vary between 0.4 and 1.0 micron grain size are harder than standard grain materials with the same cobalt content. The sub micron grains are much more uniform in size and hence give improved hardness as well as increased carbide strength. However, as specs show the transverse rupture strength is perhaps 20% improved on 15% sub micron compared to 15% fine grain material but this can give a false impression as sub micron carbide is not as resistant to impact and may chip more easily.
Rockwell Hardness
The hardness of Tungsten Carbide grades is determined by using the Rockwell hardness tester. A pointed diamond indenter is forced into the carbide. The depth of the hole is a measure of the hardness. The Rockwell "A" scale is used for tungsten carbide. Rockwell "C" readings are only shown on the data sheet so that tooling people can compare values of carbide against tool steel. The "A" scale is used on tungsten carbide because the lower indenting force of 60 KGs is less likely to damage the diamond than the 150 KGs force used on the "C" scale.
Minimum Transverse Rupture Strength (TRS)
TRS is a measure of the strength of Tungsten Carbide. Tensile strength is not used on tungsten carbide because it is too brittle and accurate readings cannot be obtained. As a rule of thumb the tensile strength of tungsten carbide is approx. half of the transverse rupture strength.
Transverse rupture strength values are determined by the amount of force needed to break standard test pieces under the same test conditions.
Compressive Strength
Compressive strength is measured by compressing a right cylinder test piece between two tungsten carbide blocks held in line by an outer sleeve assembly. The CS of Tungsten Carbide is higher than for virtually all metals and alloys. This high compressive strength makes it possible to compress carbon at one million P.S.I. from man made diamonds.

How hard is Tungsten Carbide?

Tungsten is hard. Very hard. But how hard is very hard? Hardness is measured on the Moh’s scale. You probably haven’t heard of it before, but we can easily use it to compare some common metals and materials to give you an idea just how hard Tungsten Carbide is.
As you can see in the chart, Diamond is the only thing you’d recognize which is harder than Tungsten Carbide. Gold as you know is a softer metal which is why it only scores a six on the mohs scale. This is why you’ll notice gold rings getting scratched, having any hard edges smoothed over as time goes on and generally losing that ‘new’ appearance. In fact, the harder variations of gold are LESS pure, meaning if you want it to last you will have to choose an alloy anyways.

Tungsten Carbide Ball

Cemented Tungsten Carbide is an incredible material. It was originally developed for use as a cutting tool, in machine tools applications, where it still finds wide use today.
It is extremely hard at 91 HRA which is equivalent to 1500 Vickers 30. This material is very wear resistant, with some abrasion tests showing it at 30 times hard steel. It has good long-term dimensional stability, which makes a good material for gage applications.
Cemented Tungsten Carbide is extremely stiff, with a Young's modulus of elasticity of 98,000,000 pounds per square inch, compared with steel at 30,000,000 PSI. This high stiffness makes cemented tungsten carbide balls a good choice for ball-sizing and they provide premier results as components of kinematic couplings.
Its good performance at temperatures up to 800 degree Fahrenheit ( 427 centigrade ) make it a good choice in high temperature applications.
It has good corrosive resistance in many environments.
The material has a very low rate of thermal expansion, at 2 microinches per inch per degree Fahrenheit (4.9 X 10-4 per degree C). Steel is 6.4 and aluminum is 12 microinches per inch per degree Fahrenheit.
One of the very important features of this material is that it is electrically conductive, with a resistivity of two micro ohms per centimeter. This conductivity sets it apart from other hard stiff materials, such as ceramics and sapphire, because it allows it to be machined into complex forms by the Electrical Discharge Machining (EDM) process. Cemented Tungsten Carbide can be ground and lapped using diamond grit. The material is slightly magnetic. Small diameter balls can be picked up with a magnet. Cemented Tungsten Carbide is very heavy, with a density of .54 pounds per cubic inch or 15 grams per cubic centimeter.
Cemented Tungsten Carbide is neither a metal nor is it a ceramic. It is a cermetal although this isn't a widely used term. This is a combination of a large percentage of Tungsten Carbide ceramic particles bonded together by a small percentage of a metallic binder, to form a solid mass.

Tungsten carbide products

Tungsten carbide is a material used for a number of industrial applications and it is characterised by its high strength, toughness and hardness. Its name derives from the Swedish for tung (heavy) and sten (stone) and it is mainly used in the form of cemented tungsten carbides. Cemented carbides (also known as hardmetals) are made by 'cementing' grains of tungsten carbide into a binder matrix of cobalt or/and nickel.
Tungsten carbide as a material can vary in carbide grain size (0.2 – 50 microns) and by binder contents (up to 30%), as well as by the addition of other carbides. By varying the grain size of the tungsten carbide and the binder content in the matrix, engineers have access to a class of materials whose properties can be tailored to a variety of engineering applications. This includes high-tech tools, wear parts and tools for the construction, mining and oil and gas sector.
Tungsten carbide products typically have a high resistance to wear and can be used at high temperatures, allowing tungsten carbide's combined hardness and toughness to significantly outperform its steel product equivalents.
Element Six tungsten carbide products
Our Hard Materials Division has been manufacturing tungsten carbide for over 60 years. We develop, produce and sell hardmetals and special tools for industries ranging from construction, mining and tunnelling, to oil and gas, textiles, automotive and agriculture. Our comprehensive unrivalled quality assurance programme ensures that all our inserts are certified to ISO 9001:2008 quality standards. For more information, please see our brochures.
As a company, we are focused on building business partnerships as our greatest strength is in developing customised solutions that create long-term advantages for our partners.

What Is Tungsten Carbide?

Tungsten carbide is an inorganic chemical compound that contains equal numbers of tungsten and carbon atoms. It is sometimes colloquially referred to as simply "carbide." In its most basic form, it is a fine gray powder, but it can be pressed and formed into shapes for use in industrial machinery, tools, abrasives, as well as men's jewelry.
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The notable and rare combination of physical properties possessed by tungsten carbide makes it useful for a variety of applications. It is extremely strong and wear-resistant. There are only a few materials on earth that can be used to cut or engrave it, with industrial diamond abrasives being one of these. Its tensile strength is very high, but it is brittle under high pressures as a result. The melting point is also very high, at 5,200°F (2,870°C). To boil, it must be heated much further, to 10,382°F (6,000°C).
This compound can be made by reacting tungsten and carbon at temperatures of around 2,552 to 3,632°F (1,400 to 2,000°C). It is then often made into mills and cutting tools for industrial use, which are able to withstand heavy use and high temperatures. Military organizations also use it in armor-piercing ammunition as an alternative to depleted uranium because of its very high density and hardness level. Some sporting goods are made stronger and more durable by the addition of carbide. Trekking poles used by hikers, for instance, use carbide tips in order to gain traction on hard or rocky surfaces.
Several common consumer goods contain tungsten carbide, including razor blades and the rotating tips of ballpoint pens. It has also become increasingly common for it to be used in men's wedding bands. When used in this way, the bands have a dark hue that can be polished to a mirror-like shine. Due to the toughness of the material, these rings will remain shiny and scratch-free for decades.
Wedding bands made of carbide also contain other materials known as binders, usually metals such as nickel and cobalt. Cobalt has been known to cause allergic reactions on the skin of the wearer, so many manufacturers are turning toward substitute materials. Despite the common misconception that carbide rings cannot be removed in emergency situations, the jeweler's saws used in emergency rooms and jewelry shops can cut through any material that a ring might be made of.
It is important to note that tungsten carbide is made in nearly two dozen different grades that have different properties, depending on what each will be used for. They are almost all variations of just a few parameters: grain size, hardness, and the degree to which a binder is used. Generally, the higher the percentage of the finished product that is composed of binding materials like nickel, the softer it will be and the more it will wear. The size of the original powder grains makes slightly less difference, but can affect the amount of shock that the product will be able to withstand.

Tungsten carbide products

Tungsten carbide is a material used for a number of industrial applications and it is characterised by its high strength, toughness and hardness. Its name derives from the Swedish for tung (heavy) and sten (stone) and it is mainly used in the form of cemented tungsten carbides. Cemented carbides (also known as hardmetals) are made by 'cementing' grains of tungsten carbide into a binder matrix of cobalt or/and nickel.
Tungsten carbide as a material can vary in carbide grain size (0.2 – 50 microns) and by binder contents (up to 30%), as well as by the addition of other carbides. By varying the grain size of the tungsten carbide and the binder content in the matrix, engineers have access to a class of materials whose properties can be tailored to a variety of engineering applications. This includes high-tech tools, wear parts and tools for the construction, mining and oil and gas sector.
Tungsten carbide products typically have a high resistance to wear and can be used at high temperatures, allowing tungsten carbide's combined hardness and toughness to significantly outperform its steel product equivalents.
Element Six tungsten carbide products
Our Hard Materials Division has been manufacturing tungsten carbide for over 60 years. We develop, produce and sell hardmetals and special tools for industries ranging from construction, mining and tunnelling, to oil and gas, textiles, automotive and agriculture. Our comprehensive unrivalled quality assurance programme ensures that all our inserts are certified to ISO 9001:2008 quality standards. For more information, please see our brochures.
As a company, we are focused on building business partnerships as our greatest strength is in developing customised solutions that create long-term advantages for our partners.

Tungsten Carbide Ball

Cemented Tungsten Carbide is an incredible material. It was originally developed for use as a cutting tool, in machine tools applications, where it still finds wide use today.
It is extremely hard at 91 HRA which is equivalent to 1500 Vickers 30. This material is very wear resistant, with some abrasion tests showing it at 30 times hard steel. It has good long-term dimensional stability, which makes a good material for gage applications.
Cemented Tungsten Carbide is extremely stiff, with a Young's modulus of elasticity of 98,000,000 pounds per square inch, compared with steel at 30,000,000 PSI. This high stiffness makes cemented tungsten carbide balls a good choice for ball-sizing and they provide premier results as components of kinematic couplings.
Its good performance at temperatures up to 800 degree Fahrenheit ( 427 centigrade ) make it a good choice in high temperature applications.
It has good corrosive resistance in many environments.
The material has a very low rate of thermal expansion, at 2 microinches per inch per degree Fahrenheit (4.9 X 10-4 per degree C). Steel is 6.4 and aluminum is 12 microinches per inch per degree Fahrenheit.
One of the very important features of this material is that it is electrically conductive, with a resistivity of two micro ohms per centimeter. This conductivity sets it apart from other hard stiff materials, such as ceramics and sapphire, because it allows it to be machined into complex forms by the Electrical Discharge Machining (EDM) process. Cemented Tungsten Carbide can be ground and lapped using diamond grit. The material is slightly magnetic. Small diameter balls can be picked up with a magnet. Cemented Tungsten Carbide is very heavy, with a density of .54 pounds per cubic inch or 15 grams per cubic centimeter.
Cemented Tungsten Carbide is neither a metal nor is it a ceramic. It is a cermetal although this isn't a widely used term. This is a combination of a large percentage of Tungsten Carbide ceramic particles bonded together by a small percentage of a metallic binder, to form a solid mass.

Tungsten Carbide Coatings

Here at ASB Industries, the most frequently applied wear resistant coating is tungsten. Using our different HVOF systems allows consistent production by choosing powdered feedstock best for your application. Our spray rooms are designed to handle different components, utilizing large turning capabilities with equipment from robots and X-Y gun manipulators to overhead cranes; and specialty-built fixtures for handling repetitive production and complex masking fixtures to protect uncoated areas.
In the continuous-combustion high-velocity oxyfuel HVOF thermal spray process, a fuel gas and oxygen are combusted in a high-pressure chamber, reaching temperatures of 4500 to 5600°F. The hot, high-pressure gas is ejected through a small-diameter nozzle and accelerated down a long barrel at supersonic speeds. Powder, such as Tungsten Carbide is also injected into the nozzle, where the particles mix with the speeding gases and reach velocities of 2500 ft/s to more than 3000 ft/s.
The high speeds impart tremendous amounts of kinetic energy to the particles. Remember that kinetic energy equals half the mass of the particle times the square of its velocity (KE= 1/2 mv2). When these highly energetic particles strike the substrate, the velocity goes to zero and the kinetic energy is absorbed by the particle, causing it to melt in a millisecond. Subsequent particles arrive almost simultaneously, rapidly building up the coating. The result is a very dense adhesive/cohesive coating. It has comparatively very high bond strength, low residual stress, low porosity (typically less than 0.5%), and high wear resistance.
Here at ASB Industries, the most frequently applied powder is tungsten carbide with a cobalt binder. Tungsten carbide melts at 5200°F, and is extremely hard, with Vickers hardness number 2242. On the other hand, cobalt has a melting point of 2460°F, and Vickers hardness number is 1043. Coating properties such as hardness, wear resistance, and strength depend primarily on the grain size and volume fraction of the tungsten carbide particles. Therefore, WC-Co coatings can be designed to provide the specific properties needed for an application by controlling the grain size of the tungsten carbide particles and their volume relative to cobalt. In general, cobalt content ranges from 5 to 30 wt%, and WC grain sizes range from one to eight microns, although for some applications grain size may reach 30 microns.
ASB Industries’ on-site and in-house capabilities in paper mills allow a long lasting carbide grip surface applied to roll surfaces for different processing stages during paper production. ASB will adapt carbide spraying parameters using our flame spray equipment to work best with the paper quality and thickness.
Erosion, abrasion and corrosion are considerations for choosing different chemistries and binder materials. Tungsten Carbide is typically used for extreme wear conditions in almost every industry.
In steel and metals production, tungsten carbide coatings, along with tungsten weld coatings, are widely used from ore production through finished product. A multitude of accepted applications show dramatic maintenance cost reductions and improved production quality.
In power generation where coal is the fuel source, components are required to be protected from extreme abrasion under demanding production seasonal schedules. ASB Industries has a wide variety of solutions incorporated in many critical components.
If your application requires a specific finish, then ASB Industries in most cases will be able to complete your carbide coated surface to varying surfaces finishes or Ra. From large to small components, ASB Industries will most likely be able to finish your project with our diamond grinding and diamond super finishing equipment.

Tungsten Carbide Bearings

The tungsten carbide bearing inserted tungsten carbide adopts the advance technology with the high strength and long life features. The cemented carbide bearing surface with the cemented carbide material, special solder and welded to a whole body with the basis part through sinter treatment, makes the cemented carbide bearing with the high strength, long life, anti-wear, anti-impact and high load. The standard bearing used is a Carbon-Graphite compound which has excellent corrosion resistant characteristics when operating in most liquid environments. Certain fluids will attack the binder or process streams may contain abrasive solids which preclude the use of carbon-graphite bearing. In these cases alternate materials are available such as:carbide bearing
Silicon Carbide
Carbon-Graphite
Aluminum Oxide (ALOX)
A brief description of each of these tungsten carbide bearings materials.
CARBON-GRAPHITE
These are materials manufactured from a blending of Carbon and Graphite powders with a hydrocarbon binder. The result is a materials which is resistant to wear, chemically resistant and thermally stable. There are many grades of Carbon-Graphite bearing materials. The shaft journal treatments M-2, M-3 or NCB can be used with type B bearings although it is not necessary. Journal treatment will extend the life of the shaft since it will resist abrasion if the bearings run dry or are exposed to abrasive particles. See Engineering data sheet 26E for more informationconcerning shaft coatings. When a tungsten carbide bearing wear detector is used, the maximum fluid temperature for a sleeved, bearing is 400°F.
SILICON CARBIDE
This material is a self sintered, high density hardened material with very good wear and chemical resistance. Silicon carbide is very wear resistance but care must be taken when applying this material because silicon carbide is brittle making it susceptible to thermal and mechanical shock. This type of cemented carbide bearing is much less forgiving than carbon graphite when system upsets, such as dry running and cavitation, occur. Silicon graphite bearings do not wear gradually. If the bearings fail they normally shatter into many pieces causing a catastrophic failure.
CARBON-GRAPHITE - This is a grade of Carbon-Graphite which is used primarily in Hydrofluoric Acid service. Experience has shown that the binder of the carbon graphite type B bearings is attacked by hydrofluoric acid causing the bearing to swell and seize on the shaft. The type F-2 graphite composition is inert to hydrofluoric acid attack.
This grade can be used on other applications, but most are covered by the Type B bearing which is less expensive and more readily available. Run dry or are exposed to abrasive particles. See Engineering data sheet 26E for more information concerning shaft coatings.
Aluminum Oxide
This material is very similar to silicon carbide with regard to wear and chemical resistance. Aluminum oxide is also very susceptible to thermal and mechanical shock.

Tungsten Carbide Bars

Chinatungsten Online is a special tungsten carbide manufacturer and exporter in mainland of China, it supplies nearly all kinds of products made of tungsten carbide, e.g. tungsten carbide bars, tungsten carbide strips, tungsten carbide rods, tungsten carbide seals, tungsten carbide button and so on.
Tungsten carbide bar is widely known as one kind of carbide cutting tools, it's available for different grinding geometric parameters and suitable for both cutting materials and nonmetal materials, also it can be applied to conventional,tungsten carbide insert, semi-automatic lathe, automatic lathe and planning machine to work grooves and operate cutting, etc.
Main advantages of tungsten carbide bars:
1. High hardness after quenching and tempering
2. Excellent wear resistance
3. Excellent hot-work performance
We have many years' experience to supply our clients the mentioned high-quality products with most competitive prices. If you are interested in any products or have any questions, please CONTACT US directly.
It is always our principles to offer our best service to any clients at any time.

Tungsten Carbide Plates

CHINATUNGSTEN ONLINE manufacture tungsten carbide plates in different specifications according to clients' specific requirements. The surface condition are divided as sintered blank and grinding, which meet different products applications. Following is a drawing showing the carbide plates we supplied.
Tungsten carbide plates are used for cutting metal, wood and other materials. The advantages of our carbide cutting plates are smooth, fast cutting speed and have a long service time. Unlimited tracks of grades and sizes of carbide plates are available in our company.
We produce tungsten carbide plates in different sizes and qualities. We accept orders of all types of special products designed for our customers.
All our tungsten carbide plate products must be inspected strictly and only those without any damage, such as pores can be sent out.
Thickness, width, as well as Length can be various. If you have interest in purchasing our products, kindly please provide us the following necessary information for production:
specific dimensions including length, width, and thickness;
dimension tolerance if you have;
surface condition: sintered blank or grinding;
quantity;
tungsten carbide grade or chemical composition.

Tungsten Carbide Saw

Tungsten carbide saws the most commonly used wood processing cutting tools, the quality and processing quality of tungsten carbide saws are closely related. Reasonable selection of our products is significant for improving product quality, shortening the processing cycle and reducing processing costs.
Tungsten carbide saws are supplied in a range of standard sizes for wood and steel-sawing applications.
Using the latest technologies and materials, our solid carbide saw blades are high performance products. These kinds of carbide saw blades are specially manufactured for cutting off and slotting metal materials such as plain steel, chilled steel, aluminum and copper as well as difficult-to-machine materials such as stainless steel, titanium alloys and printed circuit board.
We are one of most professional producer of high quality tungsten carbide saw for TCT saw blades in woodworking and metalworking.
Through years' efforts in making high quality tungsten carbide saw, we have gained rich experience in grade researching, mould designing, automatic press, HIP sintered, surface treating and quality control. Now our monthly capacity is 50 tons. Various saw tips have been recognized by the worldwide maker of saws and tools.
Have following advantages: Grade Complete, Stable performance, easy to welding, no broken tooth, good wear resistance, high efficiency.
Material: Virgin raw materials
Our tungsten carbide saws are specialized in cutting all kinds of grass, wood, composite wood, aluminum, metal and etc. Different grade s are available, such as K01, K05, K10, K20, K30, K40, P40, M30 etc.
We have our own mould production line to tailor-make any size according to our customers' drawings.