MUELLER Copper 1100 is cathode copper remelted and cast with a controlled oxygen content. This copper is the most important type of copper available commercially. It is furnished in wrought form and is used widely by the electrical industry for electrical conductors. 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-461. Producer or source: Mueller Brass Company.