Hydro-T-Metal is a versatile zinc-rich alloy that retains all the basic advantages inherent in zinc with the structural strength, stability and scope of other nonferrous metals recommended for architectural and industrial applications. This datasheet provides information on composition, physical properties, hardness, and tensile properties as well as creep. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Zn-7. Producer or source: Illinois Zinc Company, Hydrometals Inc..