How to tell what is hard alloy and what is high speed steel?
The same size, which is much heavier which is tungsten steel, is a small size parts, hard alloy than high speed steel felt component.
Hard alloy can be drawn off on high speed steel, and vice versa
Carbide is much more important than high speed steel.The proportion of cemented carbide is 14~15g/cm3, and the steel is only 8g/cm3
Experiment with a magnet, carbide is not sucked, high-speed steel can suck.Hardness can be tested by marking plates or glass.
Carbide and high-speed steel, grinding wheel spark identification, red spark is high-speed steel, no grinding wheel with hammer hammer, easily crisp alloy, also can use magnet experiment, carbide is not sucked, high-speed steel can suck.Cemented carbide is a kind of alloy material made by powder metallurgy process of hard metal and bonding metal of refractory metal. Hard alloy with high hardness, strength and toughness, good wear resistance, heat resistance, corrosion resistance and a series of excellent performance, especially high hardness and wear resistance of it, even at a temperature of 500 DEG C also remained unchanged, at 1000 degrees C still have high hardness. Hard alloy is widely used as a tool material, such as turning, milling, planing, drilling, boring, used for cutting cast iron, non-ferrous metals, plastics, chemical fiber, graphite, glass, stone and steel, can also be used for cutting steel, stainless steel, high manganese steel, tool steel and other hard processing materials.Is a kind of high speed steel tool steel with high hardness and high wear resistance and high heat resistance, and high speed tool steel or steel, white steel. High speed steel was developed by American F.W. Taylor and M. White in 1898. High speed steel has good technical performance, good strength and toughness, so it is mainly used to make complex cutting edge and impact resistant metal cutting tools. It can also manufacture high temperature bearings and cold extrusion dies. In the production of high-speed steel by melting method, after 1960s and the emergence of powder metallurgy high speed steel, its advantage is to avoid melting methodproduction caused by carbide segregation caused by mechanical performance and reduce the deformation of heat treatment.
