| Al | Mn | Zn | Si | Fe | Cu | Ni |
ISO 16220(00) | 4.4 - 5.5 | 0.26 - 0.6 | <0.2 | <0.1 | <0.004 | <0.01 | <0.002 |
Measured | 4.9 | 0.48 | 0.2 | 0.04 | <0.001 | <0.008 | 0.001 |