AA 7020 Aluminum Alloy
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Family: Aluminum Alloy
Zinc Alloy (Al-Zn). AA designation 7020.
Performance Ratings
Performance Radar
Composition
Mechanical Properties
| Tensile Strength | 401.0 MPa |
| Yield Strength | 305.5 MPa |
| Elongation | 13.8% |
| Hardness (Rockwell) |
Chemical Composition
| Element | Percentage (%) |
|---|---|
| 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 |
Where to Buy AA 7020 Aluminum Alloy
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Description
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.