MAR-M 302 is a cast cobalt-base alloy having superior oxidation and thermal shock resistance. It was designed primarily for use as a first stage turbine vane to operate in the temperature range of 1500-2000 F. This datasheet provides information on composition, physical properties, hardness, 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-43. Producer or source: Martin Metals Division, Martin Marietta Corporation.