Square structural pipes is used to extract oil or natural gas from oil Wells as well wallsUsed in engineering construction, glass curtain wall, door and window decoration, steel structure, guardrail, machinery manufacturing, automobile manufacturing, home appliance manufacturing, shipbuilding, container manufacturing, electric power, agricultural construction, agricultural greenhouse, bicycle rack, motorcycle rack, shelf, fitness equipment, Leisure and tourism products, steel furniture, various specifications of oil casing, oil pipe and line pipe, water, gas, sewage, air, heating and other fluid transportation, fire protection and support, construction and other fields.1. High pressure chemical fertilizer pipe: 10 20 16Mn GB6479-2000 ∮8-1240*1-200 Is suitable for chemical equipment and pipelines with working temperature of -40-400 ºC and working pressure of 10-32mpa 2. Conveying fluid pipe: 10#, 20#ASTM A106A,B,C, A53A,B16Mn& Lt; Q345A. B.C.D.E & gt; GB/T8163-2008 ASTM A106ASTM A53 ∮8-1240*1-200 Suitable for conveying fluid general seamless steel pipe 3. General structure tube: 10#, 20#, 45#, 27SiMnASTM A53A,B16Mn< Q345A, B, C, D, E> GB/T8162-2008 GB/T17396-2009ASTM A53 ∮8-1240*1-200 suitable for general structure, engineering support, mechanical processing, etc 4. Oil Tubing: J55, K55, N80, L80C90, C95, P110 API SPEC 5CTISO11960 ∮60.23-508.00*4.24-16.13 Tubing| Square Hollow Section | Rectangular Hollow Section | ||||||
| Size (mm) | Thickness (mm) | Size (mm) | Thickness (mm) | Size (mm) | Thickness (mm) | Size (mm) | Thickness (mm) |
| 10*10 | 0.5-1.5 | 50*50 | 0.5-3.0 | 20*10 | 0.5-1.5 | 90*50 | 2.0-4.0 |
| 12*12 | 0.5-1.5 | 60*60 | 0.5-3.0 | 25*12 | 0.5-1.5 | 100*38 | 3.0-6.0 |
| 14*14 | 0.5-1.5 | 70*70 | 0.5-3.0 | 30*20 | 0.5-1.5 | 100*40 | 2.0-4.0 |
| 15*15 | 0.5-1.5 | 80*80 | 0.5-3.0 | 40*20 | 0.5-1.5 | 100*50 | 2.0-4.0 |
| 16*16 | 0.5-1.5 | 90*90 | 2.0-12.75 | 40*25 | 0.5-1.5 | 100*60 | 2.0-4.0 |
| 18*18 | 0.5-1.5 | 100*100 | 2.0-12.75 | 40*30 | 0.5-1.5 | 100*80 | 2.0-4.0 |
| 19*19 | 0.5-1.5 | 120*120 | 2.0-12.75 | 50*25 | 0.5-1.5 | 120*50 | 2.0-4.0 |
| 20*20 | 0.5-1.5 | 150*150 | 2.0-12.75 | 50*30 | 0.5-1.5 | 120*60 | 2.5-4.75 |
| 22.2*22.2 | 0.5-1.5 | 160*160 | 2.0-12.75 | 50*40 | 0.5-1.5 | 120*80 | 2.5-4.75 |
| 25*25 | 0.5-1.5 | 180*180 | 2.0-12.75 | 60*30 | 0.5-1.5 | 150*50 | 2.5-4.75 |
| 25.4*25.4 | 0.5-1.5 | 200*200 | 2.0-12.75 | 60*40 | 0.5-1.5 | 150*100 | 4.75-12.5 |
| 30*30 | 0.5-3.0 | 220*220 | 2.0-12.75 | 60*50 | 0.5-1.5 | 160*80 | 4.75-12.5 |
| 32*32 | 0.5-3.0 | 250*250 | 4.0-12.75 | 70*40 | 1.5-4.0 | 200*100 | 4.75-12.5 |
| 38*38 | 0.5-3.0 | 300*300 | 4.0-12.75 | 70*50 | 1.5-4.0 | 200*150 | 4.75-12.5 |
| 40*40 | 0.5-3.0 | 350*350 | 6.0-12.75 | 80*30 | 2.0-4.0 | 250*150 | 4.75-12.5 |
| 45*45 | 0.5-3.0 | 400*400 | 6.0-12.75 | 80*40 | 2.0-4.0 | 300*200 | 4.75-12.5 |
| Surface treatment: galvanized, oiled, annealed Length: 5.8m, 6.0m | 80*60 | 2.0-4.0 | 300*150 | 4.75-12.5 | |||
| 80*70 | 2.0-4.0 | 400*200 | 5.75-12.5 | ||||
| 85*55 | 2.0-4.0 | 400*300 | 5.75-12.5 | ||||
| Rectangular Tube | Square Tube | ||
| Size | Thickness | Size | Thickness |
| MM | MM | MM | MM |
| 20*40 | 0.8-2.0 | 16*16 | 0.8-1.5 |
| 25*50 | 0.8-2.0 | 19*19 | 0.8-2.0 |
| 30*40 | 0.8-2.0 | 20*20 | 0.8-2.0 |
| 30*50 | 0.8-2.0 | 25*25 | 0.8-2.0 |
| 37*57 | 0.8-2.0 | 30*30 | 0.8-2.0 |
| 40*60 | 0.8-2.0 | 32*32 | 0.8-2.0 |
| 37*77 | 0.8-2.0 | 35*35 | 0.8-2.0 |
| 25*75 | 0.9-2.0 | 38*38 | 0.8-2.0 |
| 40*80 | 1.0-2.2 | 40*40 | 0.8-2.0 |
| 50*100 | 1.0-2.2 | 50*50 | 0.8-2.2 |
| 50*75 | 1.0-2.2 | 60*60 | 1.0-2.2 |
| 38*75 | 1.0-2.2 | 75*75 | 1.0-2.2 |
| 50*150 | 1.3-2.2 | 80*80 | 1.0-2.2 |
| 100*100 | 1.2-2.2 | ||
