Tungsten carbide has high hardness, wear resistance and refractory properties. These alloys contain 85%-95% tungsten carbide and 5%-14% cobalt. Cobalt is used as a binder metal, which gives the alloy a certain strength. Some alloy mainly used for processing steel also contain carbides of titanium, tantalum and niobium. All these alloys are manufactured by powder metallurgy. When heated to 1000-1100℃, they still have high hardness and wear resistance. The cutting speed of cemented carbide tools far exceeds the cutting speed of tool steel tools. Cemented carbide is mainly used for cutting tools, mining tools and wire drawing dies.

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