SUPER-Z is a superplastic zinc-aluminum alloy basically of the eutectoid composition of 78% zinc-22% aluminum with various minor additives to improve its properties, such as strength and creep resistance. Four grades of superplastic zinc alloys are available: SUPER-Z 100, SUPER-Z 200, SUPER-Z 300 and SUPER-Z 400. 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 low and high temperature performance, and corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Zn-34. Producer or source: The New Jersey Zinc Company.