Duronze III is an aluminum-silicon bronze possessing high inherent hardness combined with unusual high strength. It possesses excellent corrosion resistance and exceptional wear resistance under heavy, slow moving loads. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Cu-1. Producer or source: Bridgeport Brass Company. Originally published December 1952, revised January 1961.