2124 aircraft aerospace grade aluminum plate sheet has high strength and good cutting performance, but poor corrosion resistance; high strength, a certain degree of heat resistance, can be used as working parts below 150°C; At 125°C, the strength of 2124 alloy is higher than that of 7075 alloy; it has poor corrosion resistance, but it can be effectively protected by coating with pure aluminum; it is easy to crack during welding, but it can be welded or riveted by special processes.
2124 aircraft aerospace grade aluminum plate sheet
2124 aircraft aerospace grade aluminum plate sheet is widely used in aircraft structures (skins, skeletons, ribs, bulkheads, etc.), rivets, missile components, truck hubs, propeller components and various other structural parts.
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2124 Alloy |
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|
Alloy |
Si |
Fe |
Cu |
Mn |
Mg |
Cr |
Ni |
Zn |
Ti |
Zr |
Others |
Al |
|
|
Each |
Total |
||||||||||||
|
2124 |
0.20 |
0.30 |
3.8~4.9 |
0.3~0.9 |
1.2~1.8 |
0.10 |
~ |
0.25 |
0.15 |
~ |
0.05 |
0.15 |
Remainder |
|
Alloy |
Alloy series |
Main features |
Σb Value/MPa |
Working Temperature /℃ |
|
2124 |
Al-Cu-Mg |
The 2124 alloy with high purity only provides T851 thick plate with high short lateral elongation, improved fracture toughness and high stress corrosion resistance. |
435～455 |
<175 |
|
Technical indexes of 2024 aluminum alloy |
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|
Alloy |
Type |
Temper |
δ or d/mm |
σb/MPa |
σp 0.2/MPa |
δ/% |
KIC or KC/MPa |
Technical Standard |
|
2124 |
Aluminum plate |
T851 |
25~45 |
455 |
393 |
5 |
L－T:26.4 T－L:22.0 S－T:19.8 |
Q/6S 789--1990 |
|
25~60 |
L: 448 LT:448 ST:441 |
L: 393 LT:393 ST:379 |
L: 6 LT:5 ST:1.5 |
JT-CL--62 |
||||
|
>60~76 |
L: 448 LT:448 ST:435 |
L: 393 LT:393 ST:379 |
L: 6 LT:4 ST:1.5 |
JT--CL--63 |
||||
|
>76~102 |
L: 448 LT:448 ST:427 |
L: 386 LT:386 ST:372 |
L: 5 LT:4 ST:1.5 |
|||||
|
>102~127 |
L: 441 LT:441 ST:420 |
L: 379 LT:379 ST:365 |
L: 5 LT:4 ST:1.5 |
|||||
|
>127~155 |
L: 434 LT:434 ST:400 |
L: 372 LT:372 ST:351 |
L: 5 LT:4 ST:1.5 |
|||||
|
2124 |
Aluminum plate |
T851 |
25.4~38.2 |
455 |
393 |
6 |
AMS 4101C-2001， AMS-QQ-A-250/29 |
|
|
2124Welding Property |
||||
|
Alloy |
Resistance welding |
Melting welding |
Argon arc welding |
Note |
|
2124 |
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 type |
Application parts and typical parts |
|
2124 |
Aluminum plate： O、T351、T361、T851、T861 |
F-15，F-16， Y8， J10etc. |
Strengthen the frame, joint, beam and so on. |
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