What is Naval Brass: This term refers to a copper alloy of equal parts copper and zinc, with a very small amount of zinc and a trace amount of Lead. Itwas originally developed for sea water applications. The inclusion of tin in the alloy improves the corrosion resistance of the material, and the presence of a trace amount of lead increases the machinability of the metal.
Standard Applications: Naval brass a copper alloy with high impact strength and ductility, i.e., it can easily be stretched into wire. It offers excellent heat and electrical conductivity, and is typically used in casting applications such as builders hardware, fasteners, and settings that require corrosion resistance. This alloy can tolerate the extreme heat and pressure found in steel mills.
Custom Applications: Naval brass can be welded using MIG and TIG processes. Ventilation is critically important when welding naval brass due to the release of zinc fumes. This alloy features an extremely high corrosion resistance, making it an ideal metal to use in marine applications such as propeller shafts, turn buckles and marine hardware.
Naval Brass can be etched or chemically treated to alter the appearance of the metal. In the United States, the most striking application of Naval Brass on a large scale is at the Oklahoma City National Memorial. All of the chairs representing the victims are constructed of Naval Brass and treated to lighten in the material. In addition, Naval Brass was used to construct the Gates of Time at the Oklahoma City Memorial, though the Gates received a different treatment and thus are a different tone than the Memorial chairs.