The refractory metal of the rigid compounds and bond metal powder metallurgy process through made of a kind of alloy material. Hard alloy with high hardness, wear resistance, strength and toughness is a good, heat resistance, corrosion resistance and so on a series of excellent performance, especially its high hardness and resistance to wear, even at 500 °C temperature is basically the same, in 1000 °C still has a high hardness. Hard alloy is widely used as a tool materials, such as turning, milling, drilling and boring planer knives for machining, such as knife, used for cutting cast iron, non-ferrous metals, plastics, chemical fiber, graphite, glass, stone material and ordinary steel, also can be used to cutting heat resistant steel, stainless steel, high manganese steel, steel to the material processing. Now new carbide cutting tools of cutting speed is equal to hundreds of times of carbon steel.