Aluminum alloy is an alloy composed of aluminum as the matrix and other alloying elements. Aluminum alloy is light in weight, high in strength, has excellent electrical conductivity, thermal conductivity and corrosion resistance, is easy to process, resists stamping and can be anodized into various colors. Let's learn about the grades of aluminum alloys.
In the world, the naming method of four-digit number system is commonly used to name processed aluminum and aluminum alloys, which are respectively 1×××-9××× grade series. Among them, the 1××× grade series represent pure aluminum (the mass fraction of aluminum is not less than 99.99%), such as 1285, 1060, 1085, etc.; the 2××× grade series represent aluminum alloys with copper as the main alloying element, such as 2014 , 2024, etc.; 3××× grade series indicate aluminum alloys with manganese as the main alloying element, such as 3003, 3005, 3105, etc., of which 3003 is often used as a material for metal spinning processing; 4××× grade series indicate Aluminum alloys with silicon as the main alloying element, such as 4004, 4032, etc.; 5××× grade series indicate aluminum alloys with magnesium as the main alloying element, such as 5005, 5050, 5052, etc., of which 5052 is commonly used as a material of Sheet Metal Fabrication; 6××× grade series indicate aluminum alloys with magnesium and silicon as the main alloying elements and Mg2Si phase as the strengthening phase, such as 6061, 6063, 6082, and 6××× grade series aluminum alloys are commonly used as CNC processed materials; 7××× grade series indicate aluminum alloys with zinc as the main alloying element, such as 7003, 7005, 7085, etc.; 8××× grade series indicate aluminum alloys with other alloying elements as the main alloying element, such as 8001, 8011, 8090, etc.; 9××× grade series are spare alloy groups.
In the international four-digit number system 1××× brand series, the last two digits indicate the minimum mass fraction of aluminum, for example, 1060 indicates the industrial pure aluminum with the minimum aluminum mass fraction of 99.60%, and 1350 indicates the industrial pure aluminum with the minimum aluminum mass fraction of 99.50%. In the international four-digit number system 2×××-8××× grade series, the last two digits of the grade have no special meaning.
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