Sirius 815 is a fully austenitic stainless steel (UNS S30815) with rare earth contents that make the alloy well suited for hightemperature service (up to 1100 °C, or 2012 °F) in oxidizing environments. This datasheet provides information on composition, physical properties, tensile properties, and shear strength as well as creep. It also includes information on high temperature performance and corrosion resistance as well as forming and joining. Filing Code: SS-1312. Producer or source: Industeel Belgium.