Grade: YD15 Hardness: 91.0 Usage: suitable for fine cars, semi-finishing titanium alloys, nickel-based superalloy, also suitable for processing all types of cast iron. Tungsten steel 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 tool 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 heat-resistant steel, stainless steel, high manganese steel, tool steel and other difficult to machine materials. Carbide cutting tools are now new carbon steel equal number of times.