| Processing Object: | Metal |
|---|---|
| Molding Style: | Hot Forging |
| Molding Technics: | Gravity Casting |
| Application: | Aviation |
| Material: | Aluminium |
| Heat Treatment: | Quenching |
| Samples: |
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| Customization: |
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Audited Supplier | Chemical Composition of 7A04 aluminum alloy | |||||||||||||
| Alloy | Si | Fe | Cu | Mn | Mg | Cr | Ni | Zn | Ti | Zr | Others | Al | |
| Single | Total | ||||||||||||
| 7A04 | 0.50 | 0.50 | 1.4~2.0 | 0.20~0.60 | 1.8~2.8 | 0.15~0.25 | - | 5.0~7.0 | - | - | 0.05 | 0.15 | Rest |
| Alloy | Alloy series | Main features | Σb Value/MPa | Working temperature/ºC |
| 7A04 | B95(Russia) | Yield strength is close to tensile strength, plasticity is low, and sensitivity to stress concentration is strong, especially under the condition of vibration load and repeated static load. Therefore, stress concentration and additional stress factors should be strictly avoided in the design, manufacture and assembly process of parts. The short transverse Kang stress corrosion resistance of the heavy alloy parts is poor. | 480~570 |
<125 |
| Physical Property of 7A04 aluminum forgings forged product parts | |||||||||
| Alloy | Type | Temper | δ Specs/mm | Direction | σb/MPa | σp 0.2/MPa | δ % | Standard | |
| 7A04 | Free forgings | T6 | Weight ≤30KG | L | 510 | 420 | 6 | GJB 2351-1995 | |
| Weight>30KG | L | 510 | 420 | 5 | |||||
| Die forgings | T6 | Weight≤30KG | L | 530 | 440 | 6 | |||
| Weight>30KG | L | 430 | 440 | 6 | |||||
| Alloy | Temper | Aircraft type | Application parts and typical part |
| 7A04 | Aluminum forgings forged product parts:T6,T652,T73,T7352 | Y8, Y12 | Skin, wallboard, all kinds of beams (backlogs, forgings), partition frame, wing ribs, long truss, joints, landing gear parts, etc. |
| Type | Alloy | Projected area (m2)Or weight(kg) |
Temper | Standard |
| Aluminum free forgings | 5 series | ≤3000kg | O,F | GBn223 ASTMB247 |
| 2,6,7 series | ≤3000kg | T6,T4,O,F | ||
| Aluminum die forgings | 5 series | ≤2.5m2 | O,F | |
| 2,6,7 series | ≤2.5m2 | T6,T4,O,F |
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