Grade: P30 Hardness: 90.5 Density: 12.9 Flexural strength: 2100 Performance and application: for steel roughing. Tungsten steel (alloy) with high hardness, wear resistance, strength and toughness, heat resistance, corrosion resistance and a series of excellent performance, especially its high hardness and wear resistance, even at 500 ℃ temperature also remained unchanged, at 1000 ℃ still very high hardness. Carbide is widely used as a material, such as turning, milling, planer, drill, boring knives for cutting cast iron, nonferrous metals, plastics, chemical fiber, graphite, glass, stone and ordinary steel can also be used to cut resistant hot steel, stainless steel, high manganese steel, tool steel and other difficult to machine materials. New carbide cutting speeds hundreds of times equal to carbon steel.