DURALOY HU is an austenitic, non-magnetic chromium nickel alloy steel having high corrosion and heat resistance. It is of the 39 Ni-19 Cr type alloy, similar to ACI-HU. This datasheet provides information on composition, physical properties, hardness, elasticity, 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-21. Producer or source: Duraloy Technologies Inc..