An alloy material made of a refractory metal hard compound and a bonded metal through a powder metallurgy process. Carbide has a high hardness, wear resistance, strength and toughness is good, heat, corrosion and a series of excellent performance, especially its high hardness and wear resistance, even at 500 ℃ temperature is basically the same , At 1000 ℃ still have a high hardness. Carbide is widely used as a tool material, such as turning tools, milling cutters, planers, drill bits, boring tools, etc., for cutting cast iron, nonferrous metals, plastics, chemical fiber, graphite, glass, stone and ordinary steel, Heat-resistant steel, stainless steel, high manganese steel, tool steel and other difficult to process materials. Now the new carbide cutting tool cutting speed is equal to hundreds of times the carbon steel.