FERRALIUM Alloy 255 is a high-strength super stainless steel. It combines high mechanical strength, ductility and hardness with excellent resistance to corrosion and erosion. Under most conditions of service, its corrosion resistance is superior to that of the fully austenitic AISI Types 304, 316 and 317L stainless steels. Its many uses include marine scrubbers, desalination equipment, sulfuric acid production, wet phosphoric acid production, mild sour gas wells, urea production and pulp and paper industry. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-481. Producer or source: Haynes International Inc..