Original
By certification 
Spiral Submerged Arc Welded Pipes
SSAW
Production features
1) Pipes can be produced with diameters up to 3000mm and wall thicknesses up to 25mm.
We can provide pipes in all requested steel grades due to our worldwide network of coil producers.
2) Pipes can be produced with lengths up to 53m without circumferential weld. Longer tubes can be achieved by welding.
3) There is a coating facility present on our production site.
4) Several specialized welding facilities are placed in line with the spiral mill for executing specific works like
welding clutches or other steel parts and making butt welds.
Production process
Spiral Submerged Arc Welded Pipes Raw material: hot rolled steel coil
Technology: Spirally Submerged Arc Welding
Length: 6-18 m (as standard and special lengths up to 53 m)
Technical Delivery Conditions
Spiral Submerged Arc Welded Pipes for construction purposes are normally produced according to API 5L PSL1 or ASTM A53
and so on.
The API 5L is drawn by the American Petroleum Institute in order to provide standards for pipes suitable for use in
conveying gas, water and oil.
API 5L PSL1 chemical components and mechanical property
| Class and Sort | Chemical components | Mechanical property | ||||||||||
| C(Max) | Mn(Max) | P(Max) | S(Max) | Tensile Strength | Tensile Strength | Yield Strength | Yield Strength | |||||
| (Min) | (Max) | (Min) | (Max) | |||||||||
| psi | Mpa | psi | Mpa | psi | Mpa | psi | Mpa | |||||
| B | 0.24 | 1.2 | 0.025 | 0.015 | 60 | 414 | 110 | 758 | 35 | 241 | 65 | 758 |
| X42 | 0.24 | 1.3 | 0.025 | 0.015 | 60 | 414 | 110 | 758 | 42 | 290 | 72 | 758 |
| X46 | 0.24 | 1.4 | 0.025 | 0.015 | 63 | 434 | 110 | 758 | 46 | 317 | 76 | 758 |
| X52 | 0.24 | 1.4 | 0.025 | 0.015 | 66 | 455 | 110 | 758 | 52 | 359 | 77 | 758 |
| X56 | 0.24 | 1.4 | 0.025 | 0.015 | 71 | 490 | 110 | 758 | 56 | 386 | 79 | 758 |
| X60 | 0.24 | 1.4 | 0.025 | 0.015 | 75 | 517 | 110 | 758 | 60 | 414 | 82 | 758 |
| X65 | 0.24 | 1.4 | 0.025 | 0.015 | 77 | 531 | 110 | 758 | 65 | 448 | 87 | 758 |
| X70 | 0.24 | 1.4 | 0.025 | 0.015 | 82 | 565 | 110 | 758 | 70 | 483 | 90 | 758 |
| X80 | 0.24 | 1.4 | 0.025 | 0.015 | 90 | 621 | 120 | 827 | 80 | 552 | 100 | 827 |
Delivery
Encasement is done by our experienced forklift and crane driver in our factory.
Certification
Our company has been verified by ISO-9001 world-leading inspection company. So we can provide high quality Spiral
Submerged Arc Welded Pipes for customers.
Equipped with advanced facilities, WANLEI is engaged in offering spiral submerged arc welded pipes with high quality, strong
durability and reasonable price, which is one of the professional manufacturers and suppliers in China. Under strict quality
control and management system, we can assure the high quality of our products. Please be free to buy steel pipe with our
factory.
