With the rapid growth of the beverage, beer, and food packaging industries, the demand for materials that ensure secure sealing, anti-counterfeiting performance, and high production efficiency continues to rise. Among these materials, A8011 H16 aluminum alloy strip has become a preferred choice for manufacturing tamper-evident bottle caps due to its strength, ductility, corrosion resistance, and excellent formability.

The 8011 H16 aluminum alloy strip is produced from high-purity 8011 alloy through advanced hot-rolling, solid-solution treatment, and H16 strain hardening processes. It combines medium strength, excellent elongation, and superior surface quality, meeting the strict requirements of deep drawing, spinning, embossing, and printing operations. It is widely used in tamper-evident caps, beer caps, and carbonated beverage aluminum closures.

Product Specifications

Mechanical Properties of 8011 H16 Aluminum Cap Material

Key Performance Advantages

1. Excellent Barrier Properties
A8011 H16 aluminum strip provides strong protection against light, oxygen, and moisture, effectively maintaining the freshness, stability, and shelf life of the packaged contents.

2. Superior Formability
The material offers good deep-drawing performance and optimal earing rate, allowing for continuous high-speed stamping and complex shape forming without cracking - ideal for precision bottle cap manufacturing.

3. Outstanding Corrosion Resistance
Even in humid or acidic environments, 8011 aluminum exhibits excellent resistance to corrosion, ensuring that the cap protects the beverage from external contamination.

4. Excellent Mechanical Balance
Through controlled hot-rolling and appropriate annealing, the alloy achieves an optimal combination of strength, ductility, and toughness, making it suitable for deep drawing and forming processes while maintaining product consistency.

5. Eco-Friendly and Safe
Non-toxic, odorless, and 100% recyclable, 8011 aluminum alloy complies with international food-grade safety standards, making it an environmentally sustainable packaging solution.

Typical Applications

• Tamper-Evident Screw Caps for Beverages: Used for carbonated drinks, juices, energy drinks, and mineral water.

• Beer and Liquor Caps: Offers high sealing strength, pressure resistance, and deformation resistance.

• Food Packaging Lids: Ideal for jam jars, canned foods, and seasoning bottles.

• Premium Custom Caps: Suitable for logo printing, hot stamping, color coating, and anti-counterfeit marking.

Hot-Rolled A8011 H16 Aluminum Strip - Process Characteristics

The hot-rolling process plays a crucial role in determining the microstructure and mechanical properties of the material. By precisely controlling rolling temperature, reduction ratio, and pass schedule, manufacturers can achieve optimal texture uniformity and surface quality.

Subsequent annealing treatment fine-tunes hardness and ductility, ensuring the best balance of mechanical properties for the H16 temper condition.

For surface finishing, A8011 H16 aluminum strip supports color printing, embossing, debossing, and logo milling, providing extensive customization options for brand owners.

Additionally, chromate conversion (Al–Cr) coating and DOS lubrication treatment can be applied to enhance surface corrosion resistance and processing performance.