... through made of a kind of alloy material. Hard alloy with high hardness, wear resistance, strength and toughness is a good, heat resistance ... same, in 1000 °C still has a high hardness. Hard alloy is widely used as a tool materials, such as turning ... as knife, used for cutting cast iron, non-ferrous metals, plastics, chemical fiber, graphite, glass, stone material and ordinary steel, also can be ...