MUELLER Alloy 4850 is a free-cutting copper-zinc alloy that is characterized by its good mechanical properties and good resistance to corrosion. Among its many uses are marine hardware and screw-machine products. 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-445. Producer or source: Mueller Brass Company.