NU-DIE V is an air-hardening, hot-work tool and die steel with high resistance to heat checking and erosive action. It has good hot hardness and wear resistance. NU-DIE V is used for die casting and extrusion dies for aluminum and magnesium and for plastic-molding equipment. This datasheet provides information on composition, physical properties, hardness, and elasticity as well as fracture toughness. It also includes information on forming, heat treating, machining, and joining. Filing Code: TS-276. Producer or source: Crucible Specialty Metals Division, Colt Industries.