Sumitomo SM17CRS-125 is a high-strength martensitic-ferritic alloy for use in oil country tubular goods as a material suitable for corrosive well service. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming and heat treating. Filing Code: SS-1273. Producer or source: Nippon Steel and Sumitomo Metal Corporation.