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Tungsten carbide balls widely-used in applications requiring serious hardness and resistance in order to wear and abrasion; and are capable of withstand hard shocks along with impacts. Tungsten carbide balls are designed with 6% nickel binder or perhaps 9% nickel binder. Typical applications include ball valves, pass meters, ball bearings, linear bearings, as well as ball screws.
Cemented Tungsten Carbide is surely an incredible material. It was originally developed for use for a cutting tool in machine tool applications where that still finds wide employ today. It is extremely hard at 91 HRA that's equivalent to 1500 Vickers THIRTY. This material is really wear resistant, with several abrasion tests showing the item at 30 times difficult steel. It has good long-term dimensional stability which makes a good material for gage uses. Cemented Tungsten Carbide is rather stiff, with a Young's modulus connected with elasticity of 98, 000, 000 weight per square inch, in contrast to steel at 30, 000, 000 PSI. This high stiffness tends to make cemented tungsten carbide balls a good solution for ball-sizing and they supply premier results as pieces of kinematic couplings. Its good performance at temperatures around 800 degree Fahrenheit (427° Centigrade) make it a good choice in high temperature job applications.

It has good corrosive resistance in numerous environments. The material includes a very low rate of thermal expansion, at COUPLE OF. 5 microinches per-inch per-degree Fahrenheit (4. BEING UNFAITHFUL X 10^-6 per qualification C). Steel is SIX. 4 and aluminum will be 12 microinches per-inch per-degree Fahrenheit. One of many very important features of the material is that it can be electrically conductive, with the resistivity of two micro-ohms a centimeter. This conductivity sets it in addition to the other hard stiff products, such as ceramics in addition to sapphire, because it allows it to get machined into complex forms by electrical discharge machining (EDM) procedure. Cemented Tungsten Carbide may be ground and lapped employing diamond grit. The material is slightly magnetic due to binder used, typically nickel or cobalt. Small diameter balls is usually picked up with some sort of magnet. Cemented Tungsten Carbide can be quite heavy, with a density of. 54 pounds per cubic inch or 15 grams every cubic centimeter. Cemented Tungsten Carbide is actually neither a metal nor would it be a ceramic. It is really a cermetal, although this isn't a widely used term. This is a combination of a lot of Tungsten Carbide ceramic particles bonded together with a small percentage of your metallic binder, to form a solid mass.
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