7055 aircraft aerospace grade aluminum plate sheet is an outstanding representative of the new high-strength aluminum alloy, 7055 aircraft aerospace grade aluminum plate sheet is a new type of aluminum alloy developed by increasing the content of Zn and Cu on the basis of 7050 aluminum alloy, and reducing the content of Fe and Si impurities. 7055 aviation aluminum alloy sheet has the characteristics of low density, high strength, good processing performance, good welding performance and good stress corrosion resistance. It is widely used in aerospace and other fields. The research results show that 7055 aerospace aluminum alloy sheet has higher strength, stronger fracture toughness and wider application prospects than 7050 aluminum alloy.
Application of 7055 aviation grade aluminum plate
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Chemical Composition of 7055 |
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|
Alloy |
Si |
Fe |
Cu |
Mn |
Mg |
Cr |
Ni |
Zn |
Ti |
Zr |
Others |
Al |
|
|
Each |
Total |
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7055 |
0.10 |
0.15 |
2.0~2.6 |
0.05 |
1.8~2.3 |
0.04 |
~ |
7.6~8.4 |
0.06 |
0.05~0.25 |
0.05 |
0.15 |
Remainder |
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Physical Properties of 7050 Alloy |
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Alloy |
Type |
Temper |
Size/mm |
Direction |
σb/MPa |
σp 0.2/MPa |
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|
A |
B |
A |
B |
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|
7055 |
Aluminum sheet |
T7751 |
δ12.7～38.1 |
L |
614.1 |
627.9 |
593.4 |
607.2 |
|
LT |
614.1 |
627.9 |
586.5 |
600.3 |
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|
δ12.7~76.2 |
L |
586.5 |
600.3 |
538.2 |
552.0 |
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|
LT |
552.0 |
565.8 |
510.6 |
524.4 |
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Alloy |
Temper |
Aircraft models |
Application parts and typical parts |
|
7055 |
Aluminum sheet： T7751 |
F-35，B777，ARJ21 |
All kinds of components, such as the upper wing structure, horizontal fin, joist beam, seat guide rail and freight slide, are required for high compressive strength and good corrosion resistance. |
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