Comprehensive interpretation of the characteristics of eight series of aluminum and aluminum alloys

Comprehensive interpretation of the characteristics of eight series of aluminum and aluminum alloys

    Aluminum has a lighter specific gravity, less springback during forming, higher strength, close to or higher than that of high-quality steel, good plasticity, and when the product is formed more complex, it is easier to control than stainless steel, and has excellent electrical conductivity, thermal conductivity and resistance. Corrosion, and the current aluminum surface treatment processes such as anodizing, wire drawing, sandblasting, etc. have been very mature, and aluminum is also used in mobile phones.

According to the processing method of aluminum alloy, it can be divided into deformed aluminum alloy and cast aluminum alloy. The number of aluminum and aluminum alloy is mainly divided into eight series.

Alloy designation method

1XXX means more than 99% pure aluminum series, such as 1050, 1100

2XXX means aluminum-copper alloy series, such as 2014

3XXX means aluminum-manganese alloy series, such as 3003

4XXX means aluminum-silicon alloy series, such as 4017

5XXX means aluminum-magnesium alloy series, such as 5052

6XXX means aluminum-magnesium-silicon alloy series, such as 6061, 6063

7XXX means aluminum-zinc alloy series such as 7075

8XXX indicates an alloy system other than the above

1XXX serie

     Among all series, the 1000 series belongs to the series with the most aluminum content, and the purity can reach more than 99.00%. The 1000 series aluminum plate determines the minimum aluminum content of this series according to the last two Arabic numerals. For example, the last two Arabic numerals of the 1050 series are 50. According to the international brand naming principle, the aluminum content must reach 99.5% or more to be a qualified product.

    The first series of aluminum has good formability and surface treatment, and its corrosion resistance is the best among aluminum alloys. Its strength is lower, and the higher its purity, the lower its strength.

2XXX serie

    It is characterized by high hardness, but poor corrosion resistance. Among them, the original copper content is the highest. The 2000 series aluminum alloy represents 2024, 2A16, and 2A02. The copper content of the 2000 series aluminum plate is about 3-5%.

    The 2000 series aluminum rods belong to aviation aluminum materials, which are used as structural materials and are not often used in conventional industries.

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