ANSI: 390R-070202M-PM 4340
ISO: 390R-070202M-PM 4340
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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.
390R-070202M-PM 4340 Sandvik, CoroMill 390 Carbide Insert for Milling, CVD TICN+AL2O3+TIN Coating
CVD TiCN+Al2O3+TiN GREY IRON, DUCTILE IRON, STEELS.USED FOR GENERAL PURPOSE MACHINNG VERY TOUGH
