7075 aluminum sheet is a high-strength, heat-treatable aluminum alloy from the Al-Zn-Mg-Cu (7xxx) series. It is one of the strongest aluminum alloys available, offering an exceptional strength-to-weight ratio and excellent fatigue resistance. Due to its outstanding mechanical performance, 7075 aluminum sheet is widely used in aerospace, defense, and high-performance structural applications where maximum strength is required.
Specifications
| Item | Specification |
|---|---|
| Alloy / Grade | 7075 |
| Chemical Composition (%) | Zn 5.6–6.1, Mg 2.1–2.5, Cu 1.2–1.6, Cr 0.18–0.28, Fe ≤ 0.50, Si ≤ 0.40, Mn ≤ 0.30, Ti ≤ 0.20, Al Balance |
| Series | 7000 Series (Al-Zn-Mg-Cu) |
| Temper | O, T6, T651, T73, T7351 |
| Thickness (mm) | 1.0 – 150 |
| Width (mm) | 100 – 2600 |
| Length (mm) | 1000 – 12000 (Customizable) |
| Surface Finish | Mill Finish, Anodized (Optional) |
| Standard | ASTM B209, AMS 4045 / 4049, EN AW-7075, GB/T 3880 |
Description
Features
- Ultra-high mechanical strength
Suitable for aerospace, military, and high-performance structural applications requiring maximum strength-to-weight ratio.
- Good corrosion resistance
Performs well in atmospheric, marine, and industrial environments; corrosion resistance can be further enhanced by proper coating or anodizing.
- Limited formability and workability
Can be rolled, bent, stamped, and extruded; forming is more restricted compared to 6xxx-series alloys due to very high strength.
- Smooth and uniform surface finish
Ideal for anodizing, painting, or coating for both decorative and functional purposes.
- Good weldability
Compatible with TIG and MIG welding under proper conditions; post-weld heat treatment recommended for optimal strength and fatigue performance.
- Lightweight material
Low density helps reduce overall weight while maintaining structural performance.
Applications
- Aerospace structural components.
- Aircraft frames, wing spars, and fittings.
- Defense and military equipment.
- High-performance automotive and motorsport parts.
- Molds, jigs, fixtures, and high-load machinery parts.
