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| C(％) | Si(％) | Mn(％) | P(％) | S(％) | Cr(％) | Ni(％) |
|---|---|---|---|---|---|---|
| Max 0.090 | Max 0.70 | Max 1.50 | Max 0.040 | Max 0.015 | 16.0-18.0 | 6.50-7.80 |
| Nb(%) | Al(%) | |||||
| 5xC％≤0.45 | 0.70-1.50 |
| Rp0.2 (MPa) | Rm (MPa) | Impact KV (J) |
Elongation A (%) |
A Z (%) | Delivery | Hardness HB |
|---|---|---|---|---|---|---|
| 178 (≥) | 339 (≥) | 13 | 21 | 41 | Solution & Aging, Ann, Ausaging, Q+T | 434 |