STANDARD HR-6 is a high chromium-nickel, medium carbon steel of high corrosion and heat resistance. This datasheet provides information on composition, physical properties, hardness, and tensile properties as well as fracture toughness and creep. It also includes information on high temperature performance and corrosion resistance as well as casting, heat treating, machining, and joining. Filing Code: SS-18. Producer or source: Standard Alloy Company Inc..