7050 aluminum sheet belongs to the 7000 series aluminum-zinc-magnesium-copper alloys. It is a high-strength, heat-treatable aluminum alloy developed specifically for aerospace and high-load structural applications. Compared with 7075 aluminum, 7050 offers better stress corrosion cracking resistance and superior toughness, especially in thick plates.
Specifications
| Parameter | Description |
|---|---|
| Alloy | 7050 |
| Chemical Composition (%) | Al ≥ 87.1, Zn 5.7 – 6.7, Mg 1.9 – 2.6, Cu 2.0 – 2.6, Zr 0.08 – 0.15, Si ≤ 0.12, Fe ≤ 0.15, Mn ≤ 0.10, Cr ≤ 0.04, Ti ≤ 0.06, Others ≤ 0.05 |
| Temper | T6, T74, T7451 |
| Thickness Range | 1.0 – 150 mm (customizable) |
| Width | Customizable (≤ 2000 mm) |
| Length | Customizable |
| Surface Finish | Mill Finish, Machined (optional), Film Laminated (optional) |
| Standard | ASTM B209 / AMS 4050 / EN AW-7050 |
Description
Features
- Ultra-high mechanical strength
Suitable for aerospace, military, and structural applications requiring maximum strength-to-weight ratio.
- Excellent corrosion resistance
Performs well in atmospheric, marine, and industrial environments; corrosion resistance can be further improved with anodizing or proper coating.
- Good formability and workability
Can be rolled, bent, stamped, and extruded; suitable for medium-to-thin gauge sheets, though forming is more limited compared to 6xxx-series alloys.
- 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.
Typical Applications
- Aerospace structural components.
- Aircraft wing spars and fuselage frames.
- Military and defense equipment.
- High-load tooling plates and molds.
- Precision machined structural parts.
