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Dry Goods knowledge collection, about the aluminum and the aluminum alloy eight series knowledge summary

Release time:2021-10-18Click:1008

Aluminum is light in weight, has less rebound in forming, has higher strength, is close to or more than high-quality steel, has good plasticity, and is easier to control than stainless steel when forming more complex products, has excellent conductivity, thermal conductivity and corrosion resistance, and the current surface treatment process of aluminum anodizing, wire drawing, sandblasting has been very mature, the use of aluminum in mobile phones is also very much. According to the processing method of aluminum alloy, it can be divided into deformed aluminum alloy and cast aluminum alloy. The numbers of aluminum and aluminum alloy can be divided into eight series. Alloy designation international designation (4-digit Arabic numerals) : 1XXX is represented by a series of more than 99% pure aluminum, such as 1050,11002XXX is represented by an aluminum-copper Alloy, and 20143XXX is represented by an aluminum-manganese alloy, if 30034XXX means aluminum-silicon Alloy series, if 40325XXX means aluminum-magnesium Alloy series, if 50526XXX means aluminum-magnesium-silicon Alloy series, if 6061,60637XXX represents is the aluminum-zinc Alloy series if 70018XXX represents is above the above-mentioned alloy system a series in all series 1000 series is the highest aluminum content of a series, purity can reach more than 99.00% . The lowest aluminium content of the 1000 series is determined according to the last two Arabic numerals. For example, the last two Arabic numerals of the 1050 series are 50, according to the naming principle of international brands, the aluminum content must reach above 99.5% to be qualified product. A series of aluminum has good formability and surface treatment, and its corrosion resistance is the best in aluminum alloy. Its strength is low, the higher the purity, the lower the strength.

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Mobile phone is commonly used to have 1050,1070,1080,1085,1100, do simple extrusion molding (do not bend) , of which 1050 and 1100 can do chemical sand, smooth surface, fog surface, normal effect, have more obvious material texture, good coloring effect; 1080 and 1085 mirror aluminum is often used to do bright word, fog surface effect, no obvious material texture. A series of aluminum are relatively soft, mainly used for decorative or interior pieces. The second series is characterized by high hardness, but poor corrosion resistance, of which copper original content is the highest, 2000 series on behalf of 2024,2A16,2A02. The copper content of 2000 series aluminum plate is about 3-5% . The 2000 series aluminum bar belongs to aviation aluminum, which is used as structural material and is not often used in conventional industry at present.

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The series 3000 aluminum bar is mainly composed of manganese. 3000 series aluminum alloy represents 3003,3105,3A21-based. Content in the range of 1.0-1.5, is a good series of anti-rust function. Commonly used as tanks, tanks for liquid products, construction parts, construction tools, various lighting parts, as well as sheet processing of various pressure vessels and pipes. Good formability, solubility and corrosion resistance.

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Four series usually silicon content between 4.5-6.0% , silicon content higher strength is relatively high, 4000 series of aluminum bar represents for 4A01,4000 series of aluminum plate belongs to high silicon content series. It is a building material, mechanical parts, forging material, welding material, low melting point, good corrosion resistance, heat resistance and wear resistance.

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The five series 5000 aluminum bar belongs to the common alloy aluminum plate series, the main element is magnesium, the magnesium content is between 3-5% . 5000 series aluminum alloy represents 5052,5005,5083,5A05 series. Also known as aluminum magnesium alloy. The main characteristics are low density, high tensile strength, high elongation. In the same area, the weight of al-mg alloy is lower than other series, and it is widely used in conventional industry.

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The six series 6000 aluminum alloy represents 6061, which mainly contains magnesium and silicon. Therefore, the advantages of 4000 series and 5000 series 6061 are concentrated. 6061 is a cold-treated aluminum forging product, suitable for applications requiring high corrosion resistance and oxidation resistance. Good serviceability, easy coating, good workability.

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6061 and 6063 are commonly used in mobile phones, of which 6061 is stronger than 6063, and can be cast into a more complex structure, can do with clasp parts, such as battery caps.

Seven series mainly contain zinc, 7000 series of aluminum alloy on behalf of 7075. Also belongs to the aviation series, is the aluminum magnesium zinc copper alloy, is may heat treatment alloy, belongs to the ultra-hard aluminum alloy, has the good wear resistance. At present, the basic import, China’s production process is still to be improved.

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Eight series 8000 series aluminum alloy more commonly used for 8011 belong to other series, most of the application for aluminum foil, the production of aluminum rod is not commonly used.

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Source: International Metals Online

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