What is aluminum alloy

- Jan 03, 2018 -

What is aluminum alloy


1, aluminum alloy is the most widely used nonferrous metal structure material in the industry. It has been widely applied in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industry. With the rapid development of industrial economy, the demand for aluminum alloy welded structures is increasing, and the research on the weldability of aluminum alloy has also been deepened.


2, aluminum alloys usually use copper, zinc, manganese, silicon, magnesium and other alloy elements. In early twentieth Century, they were invented by German Alfred Wilm, which greatly helped the development of aircraft. After the first World War, Germany's aluminum alloy components were classified as state secrets. Compared with ordinary carbon steel, it has lighter and corrosion-resistant properties, but its corrosion resistance is not as good as pure aluminum. In a clean and dry environment, the surface of the aluminum alloy forms a protective oxide layer.


3. aluminum alloy is the general name of the alloy based on aluminum. The main alloy elements are copper, silicon, magnesium, zinc, manganese. The secondary alloy elements are nickel, iron, titanium, chromium, lithium and so on. Aluminum alloy has low density, but high strength. It is close to or better than high quality steel. It has good plasticity and can be processed into various profiles. It has excellent electrical conductivity, thermal conductivity and corrosion resistance. It is widely used in industry and used only for steel.


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