Abstract AVESTA 254 SMO was developed for use in halide-containing environments. Its high molybdenum content, along with the copper addition, provides a material with excellent resistance to pitting and crevice corrosion as well as good general corrosion resistance, especially in halide-containing acids. In addition, its high nitrogen content results in superior strength when compared with other austenitic stainless steels. Typical applications for Avesta 254 SMO involve seawater contact, scrubbers and high-halide level tanks and piping. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-445. Producer or source: Aluminum alloy mills.