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Mechanical properties of pure nickel bar at room temperature
| Grade | State | Dia (mm) |
Mechanical properties, not less than | |
| Rm/MPa | A(%) | |||
| N4 N5 N6 N7 N8 |
Y | 3-20 | 590 | 5 |
| ＞20-30 | 540 | 6 | ||
| ＞30-65 | 510 | 9 | ||
| M | 3-30 | 380 | 34 | |
| ＞30-65 | 345 | 34 | ||
| R | 32-60 | 345 | 25 | |
| ＞60-254 | 345 | 20 | ||