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Standard:GB,ASTM,BS,JIS
Material:Q195,Q215,Q235,Q345B,X42,Gr.B
| Specification | Wall Thickness | Specification | Wall Thickness |
| mm | mm | mm | mm |
| 20*30 | 1.3-3.0 | 60*90 | 1.5-5.75 |
| 20*40 | 1.3-3.0 | 50*100 | 1.5-5.75 |
| 30*40 | 1.3-3.0 | 50*120 | 1.5-5.75 |
| 30*40 | 1.3-3.0 | 60*100 | 1.5-5.75 |
| 25*40 | 1.3*3.0 | 60*120 | 1.5-5.75 |
| 25*50 | 1.3*3.75 | 80*100 | 1.5-5.75 |
| 30*50 | 1.3-3.75 | 80*120 | 1.5-13 |
| 30*60 | 1.3-4.0 | 75*125 | 1.5-13 |
| 40*50 | 1.3-4.0 | 100*150 | 2.5-13 |
| 40*60 | 1.3-6.0 | 140*80 | 2.5-13 |
| 50*70 | 1.3-5.0 | 160*80 | 2.5-13 |
| 40*80 | 1.3-5.0 | 200*100 | 2.5-13 |
| 60*80 | 1.7-4.75 | 250*100 | 2.5-13 |
| 100*40 | 1.7-4.75 | 200*150 | 2.5-13 |
| 250*150 | 2.5-13 | 300*100 | 2.5-13 |
| 200*300 | 3.0-13 | 400*100 | 3.0-13 |
| 400*200 | 3.0-13 |
Rectangular Steel Pipe