MP35N Alloy is a nickel-cobalt base alloy of the MULTIPHASE alloy system. It possesses a unique combination of properties-ultra high strength, toughness, ductility and outstanding corrosion resistance. This datasheet provides information on composition, physical properties, hardness, and tensile properties as well as fracture toughness and fatigue. It also includes information on low and high temperature performance, and corrosion resistance. Filing Code: Co-61. Producer or source: Amax Specialty Metals Corporation. Originally published as MP 35N Multiphase, July 1970, revised February 1991.