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What's HSS?
Jul 13, 2018

HSS is the abbreviation of high speed steels in English, the corresponding Chinese name is high-speed steel, high-speed steel is a common material to make tools.

Also known as wind steel or front steel, means quenching even in the air cooling can harden, and very sharp. It is a complex alloy steel, containing tungsten, molybdenum, chromium, vanadium, cobalt and other carbide forming elements. The total alloying elements amounted to about 10~25%. It can maintain high hardness at high speed cutting (about 500 ℃), HRC can be over 60. This is the main feature of high-speed steel-red hard. and carbon tool steel after hardening and low temperature tempering, at room temperature, although there is a very high hardness, but when the temperature is higher than 200 ℃, hardness will drop sharply, in 500 ℃ hardness has dropped to the same degree as the annealing state, completely lost the ability to cut metal, which limits the carbon tool steel making cutting tools. The high speed steel, due to its red rigidity, makes up for the fatal disadvantage of carbon tool steel, which can be used to make cutting tools.

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