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