BETHLEHEM M-7 is a high-molybdenum type of high-speed steel. Because of its high-carbon and high-vanadium contents, it has superior resistance to abrasion and is used for tools where edge toughness and wear resistance are required. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on forming, heat treating, machining, and surface treatment. Filing Code: TS-332. Producer or source: Bethlehem Steel Corporation.