The difference between aviation aluminum alloy plate and ordinary aluminum alloy plate

Aviation aluminum alloy is an ultra-high-strength deformed aluminum alloy with good mechanical properties and processing properties, easy to shape, good heat treatment strengthening effect, high strength at high temperatures (150°C or higher), and good toughness.
Compared with ordinary aluminum alloys, aviation aluminum alloys have higher requirements for strength, hardness, toughness, fatigue resistance, and plasticity. Due to its light weight and remarkable lightweight effect, aviation aluminum has replaced steel and occupied the leading position of current aviation materials.
There are many kinds of aluminum alloys used in airplanes. Nowadays, the aluminum alloys used in aviation aircraft structures in various countries in the world are mainly high-strength 2 series (2024, 2017, 2A12, etc.) and ultra-high strength 7 series (7075, 7475, 7050, 7A04, etc.), and some 5 series (5A06) , 5052, 5086, etc.) and 6 series (6061, 6082, etc.) and a small amount of other series of aluminum.
Aerospace aluminum materials are mainly used in wing surface skins, wing surface girders, upper and lower edge bars of wing spars, webs, fuselage girders, seat slides, keel beams, side frames, fuselage skins, and lower fuselage Wall panels, main floor stringers, etc.
1. Duralumin: aluminum-magnesium-copper alloy. The most widely used aluminum alloy in the aviation industry. Commonly used 2024, 2A12, 2017A, strength, toughness, fatigue resistance, good plasticity. Used to make skins, bulkheads, wing ribs, etc.
2. Super hard aluminum: aluminum-zinc-magnesium-copper alloy. Commonly used 7075, 7A09, high ultimate strength and yield strength, large load bearing, used to make the upper wing surface skin, girders, etc.
3. Anti-rust aluminum alloy: commonly used aluminum-magnesium alloy 5A02, 5A06, 5B05. It has high corrosion resistance, fatigue resistance, good plasticity and weldability. Used to make mailboxes, oil pipes, etc.
4. Forged aluminum alloy, commonly used 6A02, has high hardness and good corrosion resistance. Manufacturing engine parts, joints, etc.
5. Cast aluminum alloy is characterized by high heat resistance, low density, strong corrosion resistance, and is generally used to make engine casings.
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