Sandvik Sanicro 31HT is an austenitic Fe-Ni-Cr alloy developed for high-temperature service. The alloy is highly resistant to oxidation and carburization, has high creep and stress-rupture strength, and possesses good structural stability. This datasheet provides information on composition and physical properties. It also includes information on corrosion resistance as well as forming, heat treating, and joining. Filing Code: SS-643. Producer or source: Sandvik.