RMI 40 is a grade of commercially pure unalloyed titanium. It has a guaranteed minimum yield strength of 40,000 psi with good ductility and formability. Its strength is about the same as that of the annealed austenitic stainless steels. It has good impact properties at low temperatures and excellent resistance to corrosion by marine atmospheres and seawater. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and bend strength as well as fracture toughness. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Ti-72. Producer or source: RMI Company.