standard | The seamless steel tube | standard | The seamless steel tube | standard | The seamless steel tube | standard | The seamless steel tube |
6×1 | 18×5 | 32×7-8 | 48×9-10 | 70×4-5 | 83×4-5 | 102×25-26 | 127×30-32 |
6×2 | 20×1-1.5 | 32×9-10 | 48×12-14 | 70×6-7 | 83×6-7 | 102×28-30 | 127×34-35 |
7×1 | 20×2-2.5 | 34×2-3 | 51×3-3.5 | 70×8-9 | 83×8-10 | 102×32 | 133×4-4.5 |
7×2 | 20×3-3.5 | 34×4-5 | 51×4-6 | 70×10-12 | 83×12-14 | 108×4-4.5 | 133×5-6 |
8×1 | 20×4-5 | 34×6-7 | 51×8-10 | 70×14-16 | 83×16-18 | 108×5-6 | 133×8-10 |
12×2-2.5 | 27×2.5×-3 | 42×4-5 | 63.5×6-7 | 76×6-7 | 95×5-6 | 121×10-12 | 140×12-14 |
14×5 | 28×3-3.5 | 45×3.5-4 | 63.5×20 | 76×20-22 | 95×22-24 | 121×30-32 | 140×32-34 |
16×1-1.5 | 28×4-4.5 | 45×5-6 | 68×3-4 | 80×4-5 | 95×25-26 | 121×34-35 | 140×35-36 |
146×35-36 | 159×44-45 | 180×46-48 | 219×6-7 | 273×9-10 | 325×35-36 | 377×20-22 | 406×35-40 |
146×38-40 | 159×46 | 180×50-52 | 219×8-9 | 273×12-14 | 325×38-40 | 377×24-25 | 406×45-50 |
146×42-44 | 168×4-4.5 | 194×6-7 | 219×10-12 | 273×15-16 | 325×42-45 | 377×26-28 | 406×55-60 |
159×4-4.5 | 180×6-7 | 203×10-12 | 245×10-12 | 299×30-32 | 351×55-60 | 402×35-36 | 426×70-80 |
159×5-6 | 180×8-9 | 203×14-16 | 245×14-16 | 299×34-35 | 355×8-9 | 402×38-40 | 426×100 |
159×8-10 | 180×10-12 | 203×18-20 | 245×18-20 | 299×40-45 | 355×10-11 | 402×42-44 | 450×8-9 |
159×12-14 | 180×14-16 | 203×22-24 | 245×22-24 | 299×50-55 | 355×12-14 | 402×45-48 | 450×10-11 |
159×16-18 | 180×18-20 | 203×26-28 | 245×25-26 | 325×8-9 | 355×18-20 | 402×50-55 | 450×12-14 |
159×20-22 | 180×22-24 | 203×30-32 | 245×28-30 | 325×10-12 | 355×25-30 | 402×58-60 | 450×16-18 |
159×24-25 | 180×26-28 | 203×34-36 | 245×32-34 | 325×14-16 | 355×35-40 | 402×65 | 450×20-22 |
The seamless steel tube