High speed steel (HSS) is a kind of 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 is the United States F.W. Taylor and M. White in 1898 created the.
Process performance of high speed steel, with good strength and toughness, it is mainly used to produce complex thin blade and impact resistance of the metal cutting tool, also can make high temperature bearing and cold extrusion mould. 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.