| Si | Mg | Fe | Zn | Ti | Ni | Al |
Nominal value | 9.0~11.0 | 0.2~0.45 | <0.55 | <0.10 | <0.15 | <0.05 | Bal. |
Measured value | 9.72 | 0.36 | 0.10 | 0.016 | 0.006 | 0.004 | Bal. |