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Help CenterSpiral Welded Steel Pipe for Hydropower Projects
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Spiral welded steel pipe for Hydropower Projects
Established in 2005, attached to Ruijie Industry Group,Tianjin Ruijie Steel Pipe Cpompany is specialized in the production of spiral steel pipe.There are about 250 workers in factory,covers an area of 48800 square meters with annual steel production capacity about 300,000 MT. Insisting on first-calss quality,we purchased different scientific test equipment: spectrometer, metallographic, universal testing manchine and so on.
There are some detailed specifications of spiral steel pipe that we produce now for our customers all over the world.
| Outer Diameter(mm) | Wall Thickness(mm) | Length(m) |
| 219 | 6~8 | 12 |
| 273 | 6~10 | 12 |
| 325 | 6~14 | 12 |
| 377 | 6~14 | 12 |
| 426 | 6~16 | 12 |
| 478 | 6~16 | 12 |
| 508 | 6~18 | 12 |
| 529 | 6~18 | 12 |
| 610 | 6~19 | 12 |
| 630 | 6~19 | 12 |
| 720 | 6~22 | 12 |
| 820 | 7~22 | 12 |
| 920 | 8~23 | 12 |
| 1016 | 8~23 | 12 |
| 1020 | 8~23 | 12 |
| 1220 | 8~23 | 12 |
| 1420 | 10~23 | 12 |
| 1620 | 10~23 | 12 |
| 1820 | 10~25.4 | 12 |
| 2020 | 10~25.4 | 12 |
| 2200 | 10~25.4 | 12 |
| 2420 | 10~25.4 | 12 |
| 2620 | 10~25.4 | 12 |
Factory Processes of SSAW Steel pipe
Production equipment is sign of productivity level.Sophisticated production facilities represent advanced productivity.
Scientific test equipment for ssaw steel pipe
• spectrometer • metallographic • universal testing machine
• charpy impact test machine • offline ultrasonic automatic flaw detector
• X-ray real time imaging system • 2000t hydrostatic pressure testing machine
How we produce the SSAW welding steel pipe?
Oiled marking:
- Steel after passing wrer oiled to prevent corrosion,and according to user requirements for making.
Leveling Milling:
- The flat steel anvil machine so that the origal curl,and then thouth the edge milling machine for two-sided steel milling,so as to meet the requirements of the plate width,plate edge parallelism and groove shape.
Shear molding:
- The steel plate production line along the outer edge of the spiral curl into a tube.
Butt cut:
- Double-sided submerged arc welding using advanced technology to pre-welding,internal welding,outside wilding.The welded steel pipe using a plasma-foot cut to specification length.
What we can do with SSAW welding steel pipe?
Spiral seam double surface submerged arc steel pipes are used widely in many field,such as fluid,petroleum and natrual gas transportation.Also there are some STANDARDS of PRODUCTS.
• API Spec 5L Line pipeand steel pipe standard;
• BG/T 9711.1-1997 Delivery of petroleum and natrual gasindustrial transportation steel pipe Technical conditions Part 1 Grade-A Steel Pipe;
• GB/T 9711.2-1999 Delivery of petroleum and natrual gasindustrial transportation steel pipe Technical conditions Part 1 Grade-B Steel Pipe;
• SY/T5037-2000 Spiral submerged are welding steel pipe forlow-pressure fluid deliverypipe.
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