ISO-CAST 5 is a cast manganese-molybdenum steel of medium strength for general purposes. It is recommended for automobile and tractor parts, structural and machinery castings, gears, housings, etc. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on casting, heat treating, machining, and joining. Filing Code: SA-147. Producer or source: Empire Steel Castings Inc..