材料 | Si | Fe | Cu | Mn | Mg | Cr | Zn | Ti | Al |
2A10 | 0.25 | 0.20 | 3.9~4.5 | 0.30~0.50 | 0.15~0.30 | - | 0.10 | 0.15 | Balance |
5083 | 0.40 | 0.40 | 0.10 | 0.40~1.0 | 4.0~4.9 | 0.05~0.25 | 0.25 | 0.15 | Balance |