Tungsten carbide powder(WC) is the main raw material for producing cemented carbide, chemical formula is WC, its hardness is close to diamond. It obtains highly stable chemical property, good electrical and thermal conductivity.
Physical property: melting point- 2870℃, boiling point- 6000℃, relative density -15.63(18℃). Tungsten carbide is insoluble in water, hydrochloric acid or sulfuric acid,while it can dissolves in nitric & hydrofluoric mixed acid. Pure tungsten carbide phase is original brittle, but if blended with certain amount oftitanium, cobalt or other metals, toughness will relatively increase.
Tungsten carbide powder is made of tungsten powder which experiences carbonization process. During the process, C atoms disperse to tungsten matrix, serve as a interstitial solid solution phase, significantly increasing powder hardness.
According to F.S.S.S of tungsten carbide powder, it can be divided into following classes.
Tungsten carbide powder is widely used for making cemented carbide products, such as high speed cutting tools, anti-abrasion materials and crucibles for melting copper, cobalt, bismuth or other metals.
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