7005 aluminum sheet belongs to the 7000 series aluminum-zinc-magnesium alloys. It is a medium-to-high strength, heat-treatable aluminum alloy that offers an excellent balance of strength, weldability, and corrosion resistance. Compared with other 7xxx alloys such as 7075, 7005 provides better weldability and stress corrosion resistance, making it especially suitable for welded structures and transportation applications.
Description
Yutwin New Materials specializes in the production of aluminum sheets and coils in a wide range of alloys, grades, and specifications, offering stable quality, flexible customization, and reliable supply to meet the diverse needs of different industries.
Features
- Ultra-high mechanical strength
Suitable for aerospace, transportation, and structural applications requiring maximum strength-to-weight ratio.
- Good corrosion resistance
Performs well in atmospheric and industrial environments; corrosion resistance can be further improved with proper coating or anodizing.
- Good formability and workability
Can be rolled, bent, stamped, and extruded; suitable for medium-to-thin gauge sheets, although 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.
- Lightweight material
Low density helps reduce overall weight while maintaining structural performance.
Specifications
| Parameter | Description |
|---|---|
| Alloy | 7005 |
| Chemical Composition (%) | Al ≥ 90.0, Zn 4.0 – 5.0, Mg 1.0 – 1.8, Mn 0.2 – 0.7, Cr ≤ 0.20, Zr ≤ 0.25, Cu ≤ 0.20, Si ≤ 0.40, Fe ≤ 0.50, Ti ≤ 0.10, Others ≤ 0.05 |
| Temper | T5, T6 |
| Thickness Range | 0.5 – 6.0 mm (customizable) |
| Width | Customizable (20 – 2000 mm) |
| Coil Weight | Customizable |
| Inner Diameter (ID) | 150 / 300 / 505 mm |
| Surface Finish | Mill Finish, Brushed, Coated, Film Laminated (optional) |
| Standard | ASTM B209 / EN AW-7005 / GB/T 3880 |
Common Aluminum Surface Treatments
Polishing
Polishing uses mechanical grinding, chemical, or electrochemical methods to improve the smoothness and brightness of aluminum surfaces. Polished aluminum features a high-gloss finish and excellent decorative appearance.
Brushing
Brushing is a surface treatment process that creates fine, directional textures on aluminum using abrasive belts or brushes. The brushed surface provides a refined metallic appearance while helping conceal minor scratches.
Coating
Coating applies a protective coating onto the aluminum surface through powder coating, liquid spraying, or other coating methods. It provides excellent weather resistance, corrosion protection, and a wide range of color options. Coated aluminum offers both decorative appeal and long-term durabilit.
Anodizing
Anodizing is an electrochemical process that forms a dense oxide layer on the aluminum surface, improving corrosion resistance, wear resistance, and surface hardness. The oxide layer can also be colored to achieve various finishes.
Sand Blasting
Sand blasting uses high-speed abrasive particles to impact the aluminum surface, creating a uniform matte texture. This process provides a soft metallic appearance, reduces fingerprint marks, and improves coating adhesion for subsequent finishing processes.
Embossing
Embossing is a process that forms raised or recessed patterns on aluminum surfaces through rolling or stamping. Common patterns include stucco, diamond, and wood grain textures. Embossed aluminum offers excellent decorative effects, scratch resistance, and certain anti-slip properties.
Typical Applications
- Bicycle frames and high-performance sports equipment.
- Automotive structural components and chassis parts.
- Railway vehicles and transportation structures.
- Industrial welded frames and load-bearing structures.
- Machinery parts and engineering components.
