Magnesium AZ91A is a magnesium die casting alloy combining good mechanical properties, good casting characteristics and good resistance to corrosion. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive and shear strength as well as fatigue. It also includes information on high temperature performance and corrosion resistance as well as casting, heat treating, machining, joining, and surface treatment. Filing Code: Mg-61. Producer or source: Magnesium Elektron Ltd.