AA 2124 is a heat treatable aluminum plate alloy in which copper is the principal strengthening element. The alloy carries reduced allowable silicon and iron contents to ensure improved toughness. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on low and high temperature performance, and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Al-310. Producer or source: Various aluminum companies.