Project 70 and Project 7000 Type 316L stainless steels are versions of conventional AISI Type 316L stainless steel having improved machinability, and having higher tensile and creep strengths than conventional 18-8 stainless steels. This datasheet provides information on composition and physical properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-515. Producer or source: Carpenter. Originally published November 1990, revised July 1997.