NI-RESIST DUCTILE IRONS are a group of austenitic nickel-alloyed cast irons having high strength and ductility combined with heat and corrosion resistance. This datasheet provides information on composition, physical properties, hardness, and tensile properties as well as fracture toughness. It also includes information on high temperature performance as well as heat treating and joining. Filing Code: CI-28. Producer or source: International Nickel Company Inc..