Armco 303FF is an austenitic free-machining stainless steel combining excellent surface finish with good tool life. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness and fatigue. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-164. Producer or source: Armco Inc., Eastern Steel Division.