AA 7055 Aluminum Alloy
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ファミリー: Aluminum Alloy
Zinc Alloy (Al-Zn). AA designation 7055.
性能評価
Performance Radar
| 特性 | Rating |
|---|---|
| Strength | 6 / 10 |
| Corrosion Res. | 6 / 10 |
| Lightweight | 9 / 10 |
| Machinability | 8 / 10 |
| Affordability | 7 / 10 |
| Heat Res. | 4 / 10 |
組成
機械的特性
| 引張強度 | 654.0 MPa |
| 降伏強度 | 595.0 MPa |
| 伸び | 10.0% |
| 硬度（ロックウェル） |
化学組成
| 元素 | 割合 (%) |
|---|---|
| Al | 87.294 |
| Cr | 0.004 |
| Cu | 2.19 |
| Fe | 0.061 |
| Mg | 2.14 |
| Mn | 0.006 |
| Si | 0.055 |
| Ti | 0.024 |
| Zn | 8.11 |
| Zr | 0.12 |
購入先 AA 7055 Aluminum Alloy
リンクから手数料が発生する場合がありますが、追加費用はかかりません。
説明
AA 7055 is one of the highest-strength commercial aluminum alloys available (yield strength >600 MPa in T77 temper), containing elevated zinc (~8% Zn), magnesium, and copper with zirconium for grain control. The T77 retrogression and re-aging (RRA) treatment achieves near-T6 strength with T73-level corrosion resistance, resolving the traditional strength-corrosion trade-off. It is used in upper wing skins of long-range commercial aircraft where maximum compression buckling resistance is required.