RA 400 is a ductile nickel-copper alloy that is characterized by resistance to a wide range of corrosive environments, freedom from stress-corrosion cracking, and good strength and toughness over a wide temperature range. This alloy is often chosen to handle sulfuric acid under reducing conditions. Its uses include marine components, caustic evaporators and chemical processing equipment. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as creep. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Ni-284. Producer or source: Rolled Alloys Inc..