Tool grades

Cemented carbides

Cemented carbide is a tool material that has all properties necessary for cutting tools, including hardness and strength. Cemented carbide is made by powdered tungsten carbide (WC), mixing cobalt (Co) powder in it as a binder, and sintering the mixture. It can be likened to concrete. Small stones (tungsten carbide) are surrounded by cement (cobalt).


Cemented carbide, when sintered, will have nearly twice as high gravity, and about half as much volume as before the sintering process. Sintered cemented carbide is ground by a diamond grinding tool and can then be used as a cutting tool.


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