Outokumpu 303 is a free-machining austenitic stainless steel suitable for automatic screw machining applications. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-1213. Producer or source: Outokumpu High Performance Stainless.