DuraTech M48 is a superhigh-speed tool steel. The high cobalt content provides hot hardness while vanadium carbides provide wear resistance. The alloy is superior to both T15 and M42 in these categories. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on high temperature performance and wear resistance as well as heat treating and machining. Filing Code: TS-630. Producer or source: Timken Latrobe Steel.