7072 aluminum sheet is an aluminum–zinc–magnesium alloy in the 7000 series, known for its excellent corrosion resistance, moderate strength, and good formability. It is mainly used for anodized aluminum surfaces and decorative applications, as it can achieve a smooth, uniform surface suitable for coating and finishing.
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
- Excellent Corrosion Resistance
Particularly resistant to atmospheric corrosion, making it ideal for outdoor and anodized applications.
- Moderate Strength
Provides sufficient mechanical strength for non-structural panels and decorative surfaces.
- Good Formability
Can be easily bent, rolled, and fabricated into sheets or panels without cracking.
- Smooth Surface Finish
Highly suitable for anodizing, coating, and other surface treatments.
- Durable and Stable
Maintains mechanical and chemical stability under long-term service conditions.
Specifications
| Item | Specification |
|---|---|
| Alloy / Grade | 7072 |
| Chemical Composition (%) | Al ≥ 98.8, Zn ≤ 0.05, Mg ≤ 0.2, Mn ≤ 0.15, Si ≤ 0.4, Fe ≤ 0.4, Ti ≤ 0.15, Others ≤ 0.05 |
| Series | 7000 Series (Al-Zn-Mg Alloy) |
| Temper | O, H14, H16 |
| Thickness (mm) | 0.2 – 6 |
| Width (mm) | 100 – 1500 |
| Length (mm) | 1000 – 6000 (Customizable) |
| Surface Finish | Mill Finish, Anodized, Polished |
| Standard | ASTM B209, GB/T 3880, EN AW-7072 |
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.
Applications
- Anodized aluminum panels.
- Decorative surfaces and building facades.
- Architectural panels and curtain walls.
- Electronic device casing and industrial covers.
- Coated or painted aluminum sheets.
