ANSI: CCMW21.51PM25
ISO: CCMW060204PM25
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Cemented carbides are a class of hard materials used extensively for cutting tools, as well as in other industrial applications. It consists of fine particles of carbide cemented into a composite by a binder metal. Cemented carbides commonly use tungsten carbide (WC), titanium carbide (TiC), or tantalum carbide (TaC) as the aggregate. Mentions of "carbide" or "tungsten carbide" in industrial contexts usually refer to these cemented composites. The cobalt content could vary from 5% to 23% base on application. 8% to 12% are the most common for cutting tools. Ruthenium is used to replace cobalt as a perfered binder for the best cutting performance.
General purpose uncoated grade in the P30 range. This tough, economical grade is for machining of carbon steels, alloy steels, tool steels and stainless steels. PM25 provides toughness and resistance to deformation in roughing and semi-finishing operations.
