What is high speed steel?
High-speed steel (High Speed Steels, HSS), also known as high-speed tool steel or blade steel, commonly known as white steel, is composed of a large number of tungsten (W), molybdenum (Mo), chromium (Cr), cobalt (Co), vanadium (V) and other elements of high-carbon, high-alloyed steel, mainly by the metal carbide (such as tungsten carbide, molybdenum carbide, or vanadium carbide) and the distribution of carbide around the composition of the steel matrix, with a carbon content of 0.7%-1.65%, and the total amount of alloying elements reaches 10%-25%.
From the physical and chemical properties, high-speed steel has a large hardness, high strength, good toughness, red hardness, wear resistance, heat resistance and process performance characteristics. The metal carbides in HSS mainly contribute to wear resistance and strength, and the steel matrix mainly contributes to toughness and the ability to absorb impact and prevent rupture.
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