PM Krupp was founded in Dexter, Mi. in 1986 by the Krupp family. The company developed a process to manufacture high density tool steel preforms from powdered metal. Originally called Krupp Engineering and later became PM Krupp before PSM Industries acquired it in 2000. The operation was moved to Los Angeles, CA. at that time.
High Speed Steels are high-performance special steels offering high hardness at temperatures up to 500°C (932°F) and high wear resistance, thanks to alloying elements like tungsten, molybdenum, vanadium and chromium which are able to form carbides. To improve hot hardness, cobalt may also be added.