Aluminum Bronze Casting

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Copper aluminum alloys are commonly called aluminum bronzes. They contain 89-95% copper, small quantities of aluminum and in some cases there will be iron, nickel, manganese or silicon. Aluminum bronze casting is used for applications demanding high strengths and corrosion resistance. Aluminum bronzes form two distinct groups of copper aluminum alloys, AB1 and AB2, with iron, nickel and manganese as the component metals. Brass is another group of copper alloys.

Probably bronze casting was the first form of metal casting. That deduction is suggested by the discovery of bronze statues and sculptures from various parts of the world. Today we use aluminum bronze casting for a variety of applications, because of its retaining ductility and strength at elevated temperatures and adverse conditions. The corrosion resistance depends on the casting process and the heat treatment it got.

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Because of the resistance to corrosion and wear outs, aluminum bronze castings find applications in marine components and in oil and petrochemical industries, high-end nuclear applications, and electrical fields. The corrosion resistance capacity of aluminum bronzes varies according to their composition and manufacturing process.

The automobile industry mainly uses die-casting technique to produce lightweight and high strength parts, for motorcycles, cars, tractors and military vehicles. The application is mainly in gearbox, housings, bearings, cylinders, nuts, valves, etc. It also finds application in aircraft industry, atomic engineering and electrical engineering.

Aluminum Bronzes Resist Corrosion - Aluminum bronze castings have strong resistance against oxidation and corrosion, even in acidic conditions. This property allows us to use aluminum bronze castings in heavy outdoor applications. Aluminum bronzes are also resistant to stress related corrosion, making it suitable for building construction.

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A suitable method of aluminum bronze casting is chosen according to the demand. Unlike pure copper, its alloys support all major casting techniques like investment casting, sand-casting, die-casting etc. The only thing is to find a foundry that supports the selected casting process.

Bronze Alloys Stand the Test of Time — The versatility of casting technique and the inherent metallurgical properties of aluminum bronze alloys present unique solutions for any critical application that needs to stand the test of time.

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