Compared with foreign developed industrial countries, China's aluminium foil development is late, experience and technology are not mature enough, and aluminium ore resources are few. The production of aluminium foil in the middle and low excess, high-grade products are still insufficient is the problem we need to face, with the world's advanced level there are still some gaps. Used in high-end areas of 8011 aluminium foil is less, the core components can not be self-sufficient. Most of China's 8011 aluminium for air-conditioning foil and its packaging industry.
| Chemical Composition(%) | |||||||||||
| Alloy | Si | Fe | Cu | Mn | Mg | Cr | Ni | Zn | Ti | Zr | Al |
| 1235 | ≤0.65 (Fe+Si) |
≤0.05 | ≤0.05 | ≤0.05 | - | - | ≤0.10 | ≤0.03 | - | ≥99.35 | |
| 1145 | ≤0.55 (Fe+Si) |
≤0.05 | ≤0.05 | ≤0.05 | - | - | ≤0.05 | ≤0.03 | - | ≥99.45 | |
| 8011 | 0.50-0.9 | 0.6-1.0 | ≤0.10 | ≤0.20 | ≤0.05 | ≤0.05 | - | ≤0.10 | ≤0.08 | - | Remainder |
| 8079 | 0.50-0.3 | 0.7-1.3 | ≤0.05 | - | - | - | - | ≤0.10 | - | - | Remainder |
| 3003 | ≤0.6 | ≤0.7 | 0.05-0.20 | 1.0-1.5 | - | - | - | ≤0.15 | - | - | Remainder |
| 8021 | ≤0.15 | 1.2-1.7 | ≤0.05 | - | - | - | - | - | - | - | Remainder |
| 1050 | ≤0.25 | ≤0.40 | ≤0.05 | ≤0.05 | ≤0.05 | - | - | ≤0.05 | ≤0.03 | - | ≥99.50 |
| 1060 | ≤0.25 | ≤0.35 | ≤0.05 | ≤0.03 | ≤0.03 | - | - | ≤0.05 | ≤0.03 | - | ≥99.60 |
| 1070 | ≤0.20 | ≤0.25 | ≤0.04 | ≤0.03 | ≤0.03 | - | - | ≤0.04 | ≤0.03 | - | ≥99.70 |
For some of the excess capacity of low-end areas, heat treatment technology, plate shape control technology, composite rolling technology is still not mature enough, 8011 aluminium foil often low tensile strength, poor corrosion performance, bubbles, cracked edges and poor plate shape and other issues.
