
| 鋼管種類 | 外徑(D) | 壁厚(S) | ||
| 冷拔管 | 鋼管外徑(mm) | 允許偏差(mm) | 鋼管壁厚(mm) | 允許偏差(mm) | 
| >30~50 | ±0.3 | >3~20 | ±10% | 
[(外徑-壁厚)*壁厚]*0.02466=kg/米(每米的重量)
89×4.5-8-10-12-14-16-18-20 245×25-28-30-34-40 
95×4.5-6-8-10-12-14-16-20 273×7-9-12-15-18-20-25 
102×4.5-5-6-7-8-10-12-14-16-20 273×30-35-38-40-45-50 
108×4.5-5-6-7-8-10-12-14-18-20-22 299×8-12-16-20-24-28 
114×4.5-5-6-7-8-10-12-14-18-20 299×30-32-36-38-40-45 
121×4.5-5-6-7-8-10-12-14-16-20 325×8-12-14-18-38-42 
127×4.5-5-6-7-8-10-12-14-16-20 325×28-32-34-38-42 
133×4.5-6-8-12-14-16-18-20-25-30 351×10-16-20-25-40 
140×5-6-7-8-9-10-12-14-16-20-22 355×6-18-20-25-30-40/52 
146×4.5-6-8-12-14-16-18-20-25-30 377×8-12-15-20-24-28 
152×4.5-6-8-12-14-16-18-20-25-30 377×30-37-40-45-50 
159×4.5-6-10-12-14 402×10-15-20-25-30-35 
159×16-18-20-22-25-30 406×10-20-25-28-35-40 
168×8-10-12-14-20-25-30-35 426×10-12-14-16-20-25-30-35-40 
180×8-12-16-25-30 450×10-12-14-16-20-25-34-40-50 
180×32-34-38-40-45-50 480×10-12-14-16-18-20-25-30-40 
194×6-8-12-16-20-25-30-40-45-50 500×10-12-14-16-20-25-34-40-50