2324 T39 Aircraft Aerospace Grade Aluminum Plate Sheet

After 7075 aluminum plate and 2024 aluminum plate, about 20% of the new structural aluminum alloy is widely used on Boeing aircraft. For example, 7050 aluminum plate, its composition has a large change compared with 7075, increased Zr, Cu content, Fe.Si impurities greatly reduced, so that the strength, fracture toughness and stress corrosion resistance of the alloy are significantly better than 7075, especially Its quenching sensitivity is low, so it is very suitable for thick section forgings. In addition, the 2324 T39 aircraft aerospace grade aluminum plate sheet is also improved on the basis of 2024, and its fracture toughness and stress corrosion resistance have been significantly improved. From Boeing 737 to 767, the most successful use experience of aluminum alloy is that the upper wing surface is 7150-T651×, and the lower wing surface is 2324 T39 aircraft aerospace grade aluminum plate sheet and 2224-T35il.

2324 T39 Aircraft Aerospace Grade Aluminum plate sheet

2324 T39 Aircraft Aerospace Grade Aluminum plate sheet

Alloy

Alloy series

Main features

Σb Value/MPa

Working Temperature /℃

2324

Al-Cu-Mg

The special 2324 T39 aircraft aerospace grade aluminum plate sheet has higher strength, better fracture toughness and good crack resistance than 2024-T351 plate.

390~485

<150

Technical indexes of 2324 aluminum alloy

Alloy

Type

Temper

δ  or d/mm

σb/MPa

σp 0.2/MPa

δ/%

KIC or KC/MPa

Technical Standard

2324

Aluminum plate

T39

19~32

475

370

8

L-T: 26.4

T-L:22.0

S-T: 19.8

2024Welding Property

Alloy

Resistance welding

Melting welding

Argon arc welding

Note

2324

Good

Worse

Worse

For gas welding and argon arc welding of aluminum alloy as solder, tend to form crystalline cracks; 4A01 alloy solder, forming cracks tend to be significantly reduced, but the strength of welded joint is greatly reduced, such as heat treatment after welding, the joint strength is close to the substrate, but the ductility decreases.

Alloy

Temper

Aircraft Types

Application parts and typical parts

2324

2324 T39 Aircraft  aerospace grade aluminum plate sheet: T39

B737-400, ARJ21, F-35

The lower wall of a wing

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