7072 aluminum coil 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
Features
- Excellent corrosion resistance
Performs exceptionally well in atmospheric, humid, and food-contact environments, ideal for packaging and household applications.
- Good formability and workability
Can be easily rolled, bent, stamped, and deep-drawn, suitable for thin gauge applications such as foil production.
- Lightweight material
Low density ensures ease of handling while maintaining durability for packaging or industrial use.
- High thermal and electrical conductivity
Suitable for applications requiring heat transfer or electrical conduction.
- Smooth surface finish
Ideal for coating, printing, or laminating for decorative or functional purposes.
- Excellent weldability
Compatible with spot and seam welding in specific industrial applications.
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 |
Applications
- Packaging applications
Widely used in aluminum foil for food, pharmaceutical, and cosmetic packaging due to excellent corrosion resistance and hygienic properties.
- Household applications
Suitable for kitchen foil, baking sheets, and disposable containers.
- Industrial packaging
Applied in chemical and industrial packaging where corrosion resistance, barrier properties, and durability are important.
- Electrical applications
Used for capacitors, shielding, and other thin-gauge electrical components due to good conductivity and corrosion resistance.
- Heat transfer applications
Ideal for components requiring good thermal conductivity, such as heat exchangers or thermal packaging.
- Decorative and functional laminates
Suitable for coating, printing, or laminating for functional or decorative purposes.
