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| 合金钢成品化学分析允许偏差 | |||
| 元素 | 规定化学成分上限值 | 允许偏差 | |
| 上偏差 | 下偏差 | ||
| C | ≤0.3 | 0.010 | 0.010 |
| ＞0.30-0.75 | 0.020 | 0.020 | |
| ＞0.75 | 0.030 | 0.030 | |
| Mn | ≤1.00 | 0.030 | 0.030 |
| ＞1.00-2.00 | 0.040 | 0.040 | |
| ＞2.00-3.00 | 0.050 | 0.050 | |
| ＞3.0 | 0.100 | 0.100 | |
| Si | ≤0.37 | 0.020 | 0.020 |
| ＞0.37-1.5 | 0.040 | 0.040 | |
| ＞1.5 | 0.050 | 0.050 | |
| Cr | ≤0.9 | 0.030 | 0.030 |
| ＞0.9-2.10 | 0.050 | 0.050 | |
| ＞2.10-5.0 | 0.100 | 0.100 | |
| ＞5.0 | 0.150 | 0.150 | |
| Ni | ≤1.00 | 0.030 | 0.030 |
| ＞1.00-2.00 | 0.050 | 0.050 | |
| ＞2.00-5.00 | 0.070 | 0.070 | |
| ＞5.00 | 0.100 | 0.100 | |
| Mo | ≤0.3 | 0.010 | 0.010 |
| ＞0.30-0.60 | 0.020 | 0.020 | |
| ＞0.60-1.4 | 0.030 | 0.030 | |
| ＞1.4-6.0 | 0.050 | 0.050 | |
| ＞6.0 | 0.100 | 0.100 | |
| Ti | ≤0.2 | 0.020 | - |
| Cu | ≤1 | 0.030 | 0.030 |
| ＞1 | 0.050 | 0.050 | |
| Al | ≤0.10 | 0.010 | - |
| ＞0.10-0.7 | 0.030 | 0.030 | |
| ＞0.7-1.5 | 0.050 | 0.050 | |
| ＞1.5 | 0.100 | 0.100 | |
| W | ≤1.00 | 0.040 | 0.400 |
| ＞1.0-4.0 | 0.080 | 0.080 | |
| ＞4.0-10.0 | 0.100 | 0.100 | |
| ＞10.0 | 0.200 | 0.200 | |
| V | ≤0.10 | 0.010 | - |
| ＞0.10-0.9 | 0.030 | 0.030 | |
| ＞0.9 | 0.050 | 0.050 | |
| B | 0.0005-0.005 | 0.0005 | 0.0001 |
| Co | ≤4.0 | 0.1 | 0.1 |
| ＞4.0 | 0.15 | 0.15 | |
| Pb | 0.15-0.35 | 0.03 | 0.03 |
| Nb | 0.20-0.35 | 0.01 | 0.01 |
| S | ≤0.05 | 0.005 | - |
| P | ≤0.05 | 0.005 | - |
