Environmental protection is a hot topic nowadays. As an environmentally friendly, non-toxic and high-performance material, aluminum foil is widely used in line with the trend of the times. Among the aluminum foil materials, 8011 aluminum foil and 8021 aluminum foil are commonly used alloys. Although they belong to the 8 series aluminum alloy, there are some differences in the composition of the two, so there are also certain differences in performance and use. The following is a detailed introduction for you:
1. Different ingredients
| 8011 aluminum foil chemical composition (mass fraction)/% | |||||||||||
| Alloy | Si | Cr | Cu | Mn | Fe | Zn | Mg | Ti | Other | Total | Al |
| 8011 | 0.5~0.9 | ≤0.05 | ≤0.10 | ≤0.20 | 0.6~1.0 | ≤0.10 | ≤0.05 | ≤0.08 | 0.05 | 0.15 | margin |
| 8021 aluminum foil chemical composition (mass fraction)/% | ||||||||||||
| Alloy | Si | Cr | Cu | Mn | Fe | Zn | Mg | V | Ti | Other | Total | Al |
| 8021 | ≤0.15 | - | ≤0.05 | - | 1.2~1.7 | - | - | - | - | 0.05 | 0.15 | margin |
8011 aluminum foil contains Mn and Mg elements, 8021 aluminum foil does not contain these two elements, so the strength and corrosion resistance of 8011 aluminum foil are higher than 8021 aluminum foil. Commonly used aluminum foil blisters and PTP pharmaceutical aluminum foil alloys usually use 8011-H18 aluminum foil and 8011-O aluminum foil.
2. Different fields of application
8011 aluminum foil is more widely used, commonly used in pharmaceutical packaging, food packaging, lunch box materials, tape foil, cable foil, milk cap material, bottle cap material, etc.
8021 aluminum foil is mostly used in the packaging of relatively high-demand lithium battery flexible packaging aluminum-plastic films and blister medicines.
3. Different performance
8011 aluminum foil has high strength, but the corresponding elongation and puncture resistance under the same state are lower than 8021 aluminum foil
4. Different prices
The alloy components added to the two kinds of aluminum foil are different, and the production process also has certain differences, so the prices of 8011 and 8021 aluminum foils also have certain deviations, and the price of 8021 aluminum foils is relatively high.
The above is the difference between 8011 aluminum foil and 8021 aluminum foil.
MC Aluminum is a professional aluminum foil supplier. The aluminum foil produced has the advantages of clean surface, uniform color, no mottle, and smoothness. The product models are complete and can be customized according to customer needs. Fast delivery and large output are exported to many overseas countries. And regions, after-sales guarantee, customers can rest assured to order, looking forward to your mail!