20 tungsten steel Hardness: 91.5 Bending force: 2890 Implied force: 570 Compression strength: 5400 Impact strength: 29, D20 alloy steel Uses: It has good toughness and wear resistance, with wires and pipes concave die stamping parts mode, the motor stator and rotor, EI steel, LED wire frame stamping, also has good toughness and wear resistance relative fitness, mainly for wire, bar drawing processing mode. Also suitable for cast iron, non-ferrous metals and their alloys and non-metallic materials, uneven surfaces and interrupted cutting roughing, finishing planing precision milling, general and deep hole drilling, reaming and production of woodworking tools such as tungsten steel / hard carbide is mainly composed of a hard phase and a binder phase composition of the powder products. Hard hard phase, mainly a variety of carbides. The main carbide are: tungsten carbide (WC), titanium carbide (TiC), tantalum carbide (TaC) and niobium carbide (NbC). In most cases, cobalt used as binder phase. In Carbide plant, Carbide after mixing, pressing and sintering.