规 格d MM | 线径公差 MM | 节距p MM | 非焊缝处内宽b1≥（MM） | 焊缝处外宽b2≤ （MM） | 工作负荷WT (T) | 试验负荷WL (KN) | 破断负荷BL (KN) | KG/M (参考) | 3 | ±0.2 | 9 | 3.6 | 10.2 | 0.28 | 7.1 | 11.3 | 0.3 | 4 | ±0.2 | 12 | 4.8 | 13.6 | 0.5 | 12.6 | 20.1 | 0.35 | 5 | ±0.2 | 15 | 6 | 17 | 0.8 | 19.6 | 31.4 | 0.54 | 6 | ±0.2 | 18 | 7.2 | 20 | 1 | 27.3 | 45.4 | 0.79 | 6.3 | ±0.2 | 19 | 7.5 | 20.4 | 1.2 | 31.2 | 49.9 | 0.95 | 7.1 | ±0.3 | 21 | 8.4 | 23.8 | 1.6 | 39.6 | 63.3 | 1.05 | 8 | ±0.3 | 24 | 9.6 | 27.2 | 2 | 50.3 | 80.4 | 1.38 | 9 | ±0.4 | 27 | 10.8 | 30.6 | 2.5 | 63.6 | 102 | 1.8 | 10 | ±0.4 | 30 | 12 | 34 | 3.2 | 78.5 | 126 | 2.2 |
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