Share on (1600568458475):
Garde | Si | Fe | Cu | Mn | Mg | Cr | Zn | Ti | Al |
2A21 | 0.2 | 0.2-0.6 | 3.0-4.0 | 0.05 | 0.8-1.2 | - | 0.2 | 0.05 | remains |
Brand | Tensile strength | Yield strength | Hardness | Elongation |
2A21 | ≥425Mpa | ≥275MPa | HB120-145 | more than 14 |















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