MAGNESIUM EZ33A is a magnesium casting alloy recommended for use at elevated temperatures. It has good high temperature creep strength up to about 500 F. This datasheet provides information on composition, physical properties, hardness, tensile properties, and compressive strength as well as fatigue. It also includes information on high temperature performance as well as casting, heat treating, machining, and joining. Filing Code: Mg-65. Producer or source: The Dow Chemical Company, Metal Products Department.