MELTRON AM503 is a medium strength manganese type magnesium-base alloy which does not respond to a hardening heat treatment, but is useful where maximum formability, weldability, and resistance to corrosion are desired. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive strength as well as fracture toughness and fatigue. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Mg-41. Producer or source: Magnesium Elektron Inc..