AA 7020 Aluminum Alloy
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系列: Aluminum Alloy
Zinc Alloy (Al-Zn). AA designation 7020.
性能评级
Performance Radar
| 性能 | Rating |
|---|---|
| Strength | 5 / 10 |
| Corrosion Res. | 6 / 10 |
| Lightweight | 9 / 10 |
| Machinability | 8 / 10 |
| Affordability | 7 / 10 |
| Heat Res. | 4 / 10 |
成分
机械性能
| 抗拉强度 | 401.0 MPa |
| 屈服强度 | 305.5 MPa |
| 伸长率 | 13.8% |
| 硬度（洛氏） |
化学成分
| 元素 | 百分比 (%) |
|---|---|
| Al | 93.02 |
| Cr | 0.2 |
| Cu | 0.2 |
| Fe | 0.4 |
| Mg | 1.2 |
| Mn | 0.273 |
| Si | 0.35 |
| Ti | 0.07 |
| Zn | 4.5 |
| Zr | 0.14 |
购买渠道 AA 7020 Aluminum Alloy
说明
AA 7020 is a medium-to-high-strength weldable aluminum-zinc-magnesium alloy (~4.0–5.0% Zn, 1.0–1.4% Mg) that naturally ages to near-T6 strength after welding, making it popular for European structural and military applications. It provides a good balance of strength, corrosion resistance, and weldability that distinguishes it from copper-containing 7xxx alloys. Applications include military vehicle hulls, sporting equipment, bridge structures, and general structural fabrications.