| Grade | Chemical composition%）≤ | ||||||||
| GB | ASTM | JIS | Cu | Ni+Co | Fe | Mn | Pb | P | S |
| B5 | - | - | Balance | 4.5-5.5 | 0.02 | - | ≤0.7 | 0.01 | 0.01 |
| C | Mg | Si | Zn | Sn | alii | ||||
| 0.03 | - | - | - | - | 0.5 | ||||
| mechanica proprietates, | ||||
| Grade | temper | Tensio test | ||
| Distrahentes fortitudo Rm / MPa |
cede virtus: MPa |
elongation % |
||
| B5 | O60 | ≥215 | - | ≥32 |
| H04 | ≥370 | - | ≥10 | |
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