Abstract Magnesium QE-22A is a heat treatable magnesium-silver-zirconium rare earth casting alloy having very high yield strength at temperatures up to 500 F. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive strength as well as creep and fatigue. It also includes information on high temperature performance and corrosion resistance as well as casting, heat treating, machining, and joining. Filing Code: Mg-54. Producer or source: Magnesium Elektron Ltd.