| Grade | Composition chimique (%) | |||||||||
| Al ≥ | impuretés≤ | |||||||||
| Si | FE | Cu | AG | Mg | Zn | Mn | autres | Somme | ||
| Al99.9 | 99.9 | 0.5 | 0.07 | 0.005 | 0.02 | 0.01 | 0.025 | / | 0.010 | 0.1 |
| Al99.85 | 99.85 | 0.8 | 0.12 | 0.005 | 0.03 | 0.02 | 0.03 | / | 0.015 | 0.15 |
| Al99.7 | 99.7 | 0,1 | 0.2 | 0.01 | 0.03 | 0.02 | 0.03 | / | 0.030 | 0.3 |
| Al99.6 | 99.6 | 0.16 | 0.25 | 0.01 | 0.03 | 0.03 | 0.03 | / | 0.030 | 0.4 |
| Al99,5 | 99.5 | 0,22 | 0.3 | 0.02 | 0.03 | 0.05 | 0.05 | / | 0.030 | 0.5 |
| Al99.0 | 99.0 | 0.42 | 0.5 | 0.02 | 0.03 | 0.05 | 0.05 | / | 0.0+50 | 1.0 |