ANSI: CNMA643 AC420K
ISO: CNMA190612 AC420K
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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.
Type 80° Negative Turning Insert with Hole
For interrupted machining of cast iron · Designed as a grade with emphasis on fracture resistance and chipping resistance, outstanding stability is realised with heavy interrupted cutting and unstable cutting of cast iron
