Copper alloys were introduced because of their excellent resistance to corrosion by salt-water and salt-laden atmospheres. Copper alloys are prominent where a wear resistance greater than that posessed by pure copper is required. Aluminum bronze, manganese bronze, aluminium brass, gunmetal, cupro-nickel and Monel® are copper alloys commonly in use today.
Beryllium Copper is used for plastic injection molds, blow molds, cavity inserts, and other production tooling for manifolds and nozzles, because of its high strength and hardness coupled with excellent thermal conductivity (compared to tool steel and aluminum). Its also used to improve component service life, enhance durability, and reduce maintenance by imparting superior galling and friction wear characteristics in commercial and military aircraft landing gear bushings and bearings.
[Note: Beryllium copper can be handled in solid form without significant health risk. Beryllium containing materials may pose a health threat if recommended safe handling procedures and cautionary criteria are not followed. Inhalation of airborne beryllium may cause a serious lung disorder in susceptible individuals.]
Brass is a variety of copper zinc alloys with a wide range of engineering uses. The addition of zinc to copper raises the strength and gives a variety of properties, and the brasses are a very versatile group of materials. They are used for their strength, corrosion resistance, appearance and color, ease of working and joining. The single phase alpha brasses, containing up to about 37% zinc, are very ductile and easy to cold work, weld and braze. The dual phase alpha-beta brasses are usually hot worked.
Copper: B152 ETP, DHP
Copper Alloys: (Ni, Sn, Zn, P, Fe, Co, Mg, Ag) B747 B422 B422 B465
Beryllium Copper: UNS as C17200 to C17400; (Cast C82000 to C82800)
Leaded Brass: B121