Material properties of aluminum alloys

Aluminum alloy has low density, but relatively high strength, close to or more than high-quality steel, good plasticity, can be processed into various profiles, has excellent electrical conductivity, thermal conductivity and corrosion resistance, widely used in industry, the use of second only to steel. Some aluminum alloys can be heat treated to obtain good mechanical properties, physical properties and corrosion resistance. Hard aluminum alloy belongs to AI - Cu - Mg series, generally contains a small amount of Mn, can be strengthened by heat treatment. It is characterized by high hardness but poor plasticity. Superdural belongs to the Al-Cu-Mg-Zn series, which can be strengthened by heat treatment. It is the highest strength aluminum alloy at room temperature, but it has poor corrosion resistance and fast softening at high temperature. Forged aluminum alloy is mainly Al-Zn-Mg-Si alloy. Although there are many kinds of elements added, the content is small, so it has excellent thermoplasticity and is suitable for forging, so it is also called forged aluminum alloy.

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