An alloy material made of a refractory metal hard compound and a bonded metal by a powder metallurgy process. Carbide has a high hardness, wear resistance, strength and toughness is good, heat, corrosion resistance 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, cutter, planer, bit, boring tool, etc., 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 materials. Now the new carbide cutting tool cutting speed is equal to hundreds of times the carbon steel.