UGIMA 4401 (UGIMA 316) is identical to UGINE 4401 (AISI 316) in analysis, corrosion resistance, mechanical properties, and forging and welding abilities but dissimilar in machinability. A specific melting process creates inclusions (malleable oxides with a low melting point), which improve machinability by 20-30% compared with an AISI 316 (1.4401) stainless steel. 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-734. Producer or source: Ugine-Savoie.