Sumitomo HR3C is a high temperature austenitic stainless steel with higher strength than conventional 310 and better steam oxidation than conventional stainless steels. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as creep. It also includes information on high temperature performance and corrosion resistance as well as forming and joining. Filing Code: SS-1174. Producer or source: Sumitomo Metal USA Corporation.