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| Æ·¼¶ | C | Mn | Si | P | S | V | Nb | Ti | Al | Cr | Ni |
| A | ¨Q0.20 | 1.00¡«1.70 | ¨Q0.55 | ¨Q0.045 | ¨Q0.045 | 0.02¡«0.20 | 0.015¡«0.060 | 0.02¡«0.20 | - | ¨Q0.40 | ¨Q0.70 |
| B | ¨Q0.20 | 1.00¡«1.70 | ¨Q0.55 | ¨Q0.040 | ¨Q0.040 | 0.02¡«0.20 | 0.015¡«0.060 | 0.02¡«0.20 | - | ¨Q0.40 | ¨Q0.70 |
| C | ¨Q0.20 | 1.00¡«1.70 | ¨Q0.55 | ¨Q0.035 | ¨Q0.035 | 0.02¡«0.20 | 0.015¡«0.060 | 0.02¡«0.20 | ¨R0.015 | ¨Q0.40 | ¨Q0.70 |
| D | ¨Q0.20 | 1.00¡«1.70 | ¨Q0.55 | ¨Q0.030 | ¨Q0.030 | 0.02¡«0.20 | 0.015¡«0.060 | 0.02¡«0.20 | ¨R0.015 | ¨Q0.40 | ¨Q0.70 |
| E | ¨Q0.20 | 1.00¡«1.70 | ¨Q0.55 | ¨Q0.025 | ¨Q0.025 | 0.02¡«0.20 | 0.015¡«0.060 | 0.02¡«0.20 | ¨R0.015 | ¨Q0.40 | ¨Q0.70 |