Alloy CuSn3Zn9 (UNS C42500) is a bronze alloy. Typical uses include electrical devices, switching elements, connectors and terminals, fuse clips, pen clips, and weather stripping. This datasheet provides information on composition, physical properties, hardness, tensile properties, and bend strength. It also includes information on low and high temperature performance, and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Cu-881. Producer or source: Gebr. Kemper GmbH + Company KG Metallwerke.