Abstract SM322 is a cobalt-base casting alloy characterized by exceptional high temperature strength, good ductility, and oxidation resistance throughout its operating range of 1400-2000 F. It is recommended for turbine vanes and blades. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as creep. It also includes information on high temperature performance and corrosion resistance as well as casting, heat treating, machining, and joining. Filing Code: Co-38. Producer or source: Martin Metals Division, Martin Marietta Corporation.