Gun Metals Rod Bush

Red Brass/Gunmetals
Gunmetals, also more prevalent in Europe and sometimes called “red brass” in the United States, are tin bronze castings that have been widely used in shipbuilding and marine engineering. The addition of a small amount of zinc improves castability. The alloys are resistant to corrosion from steam and salt water and are not prone to dezincification, stress corrosion, crevice corrosion or pitting. Gunmetal alloys are used to make steam and hydraulic castings, valves, pump parts, steam fittings, gears, bearings, statues, and small objects such as buttons. Modern admiralty gunmetal is composed of 88% copper, 10% tin, and 2% zinc.