7050 aluminum coil 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.
Description
Features
- Very high mechanical strength
Stronger than 7005 and 6061, suitable for aerospace, military, and high-load structural applications.
- Good corrosion resistance
Provides excellent resistance to atmospheric corrosion, especially when properly heat-treated and coated.
- Good formability and workability
Can be rolled, bent, stamped, and extruded for medium-to-thin gauge applications.
- Lightweight material
Low density helps reduce overall weight while maintaining structural integrity.
- Smooth and uniform surface finish
Ideal for anodizing, painting, coating, or film lamination 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.
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 |
Typical Applications
- Aerospace and aviation components
Widely used in aircraft fuselage panels, wings, and structural components due to very high strength and good fatigue resistance.
- Military and defense applications
Suitable for armored vehicles, military aircraft, and other high-strength defense structures.
- Transportation and automotive parts
Applied in high-load structural parts of trucks, buses, and high-performance vehicles where strength-to-weight ratio is critical.
- Structural engineering
Used for bridges, cranes, and other load-bearing structures requiring high mechanical strength and lightweight material.
- Marine applications
Suitable for ship and boat structures where corrosion resistance and high strength are required.
- General fabrication and forming
Ideal for rolling, stamping, bending, and extrusion of medium-to-thin gauge sheets for structural or functional purposes.
