<p>
In comparison to ordinary alloys, an <strong>aircraft
aluminum sheet metal</strong> has better performances in strength, toughness, fatigue resistance and plasticity. Detailed types and grades are as below.</p>
<p>
1. Duralumin: aluminum magnesium copper alloy. The most widely used
aluminum alloy in the aviation industry. 2024, 2A12 and 2017A are commonly used, with good strength, toughness, fatigue resistance and plasticity. It is used to make plane skins, partition frames, wing ribs, etc.</p>
<p>
2. Super hard aluminum: aluminum zinc magnesium copper alloy. 7075 and 7A09 are commonly used. They have high strength limit and yield strength, and bear large load. They are used to manufacture the upper wing skin, girder, etc.<br></p>
<p>
3. Antirust
aluminum alloy: commonly used aluminum magnesium alloy 5A02, 5A06, 5B05. It has high corrosion resistance, fatigue resistance, good plasticity and weldability. Used to make mailbox, oil pipe, etc.</p>
<p>
4. Forged
aluminum alloy, commonly used 6A02, has high hardness and good corrosion resistance. Make engine parts, joints, etc.</p>
<p>
5. Casting
aluminum alloy, small specific gravity, high corrosion resistance and heat resistance, manufacturing engine case, etc.</p>
<p>
The overwhelming advantage of an aircraft
aluminium plate is its outstanding mechanical properties. Take <strong>7075 aluminium</strong> sheet for example. It ranks top in hardness among all
aluminum alloys. In contrast, other alloys like 5052, 3003 and 1100 have a much lower hardness, suitable only for basic industrial production. Of course, the price of aircraft
aluminium alloy proves to be higher, too.</p>