1. 8011 aluminum foil contains the elements manganese and magnesium, which are not present in 8021 aluminum foil, and therefore 8011 aluminum foil is stronger and more corrosion-resistant than 8021 aluminum foil. 2. 2. 8011 aluminum foil is stronger, but the corresponding elongation and puncture resistance in the same condition are lower than those of 8021 aluminum foil;
2. 8011 foils have high strength but lower elongation and puncture resistance than 8021 foils in the same condition. 8021 and 8079 foils are mostly used for blister and hot strip aluminum, which require high performance and elongation. 3;
3. 8011 aluminum foil has a wide range of applications and can be used in many fields such as pharmaceutical packaging, food packaging, lunch box materials, tape foil, cable foil, milk cap materials, bottle cap materials, etc. 8021 aluminum foil is relatively expensive and is mostly used in lithium battery flexible packaging aluminum film and blister pharmaceutical packaging, which have relatively high requirements.
