钢管种类 | 钢管外径(D) | 钢管壁厚(S) | ||
管体 | 钢管外径 (mm) | 允许偏差(mm) | 钢管外径(mm) | 允许偏差(mm) |
≥60.3且S<20 | ±0.75% | ≤73.0 | +15%,-12.5% | |
≥60.3且S≥20 | ±1.00% | >73.0且S<20 | +15%,-12.5% | |
>73.0且S≥20 | +17.5%,-10 |
钢管种类 | 钢管外径(D) | 钢管壁厚(S) | ||
管体 | 钢管外径 (mm) | 允许偏差(mm) | 钢管外径(mm) | 允许偏差(mm) |
≥60.3且S<20 | ±0.75% | ≤73.0 | +15%,-12.5% | |
≥60.3且S≥20 | ±1.00% | >73.0且S<20 | +15%,-12.5% | |
>73.0且S≥20 | +17.5%,-10 |