MUELLER Alloy 3530 (formerly MBCo. Alloy 254) is a high-leaded brass noted for its excellent thread-rolling and knurling properties; it has a machinability rating approaching that of free-cutting brass. Typical applications include adapters, gears and valve stems. 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-398. Producer or source: Mueller Brass Company.