ALLEGHENY B-47 is a chromium, tungsten, cobalt, vanadium hot work steel that has excellent resistance to shock and abrasion at elevated temperatures. It has good hot hardness. This datasheet provides information on composition, hardness, and tensile properties as well as fracture toughness. It also includes information on high temperature performance as well as forming, heat treating, and machining. Filing Code: TS-70. Producer or source: Allegheny Ludlum Corporation. Originally published May 1958, revised December 1961.