LSAW &SSAW Steel Pipe
Product Name: SSAW Pipe,Spiral Weled Pipe,SAW Pipe,LSAW Pipe
(O.D) Outer:SSAW Pipe:219~2020mm,LSAW Pipe:325~2020mm
Wall Thickness:SSAW Pipe:7~20mm,LSAW Pipe:7~80.0mm
Pipe Ends:Plain ends or Beveled ends
Surface:Black Painting / Oil Painting / Anti-Rust oil / Anti-Corrosive Coating
Length: usually 5.8m or 6m or 12m
Standard: API 5L, ASTM A53, A36, ASTM A252
spiral welded steel pipe
SSAW (Spiral Submerged Arc Welded) carbon steel pipe is a type of pipe manufactured by spiral-shaped steel strip are welded together using the submerged arc welding process.
lSAW welded steel pipe
LSAW (Longitudinal Submerged Arc Welding) carbon steel pipe is a type of steel pipe manufactured by the longitudinal seam is welded using the submerged arc welding process
SAW steel pipe Specification
| Out Diameter | Spiral Welded Steel Pipe Wall Thickness (mm) |  |
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| mm | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | |
| 219.1 | . | . | . | . | ||||||||||||
| 273 | . | . | . | . | . | |||||||||||
| 323.9 | . | . | . | . | . | . | . | |||||||||
| 325 | . | . | . | . | . | . | . | |||||||||
| 355.6 | . | . | . | . | . | . | . | |||||||||
| 377 | . | . | . | . | . | . | . | . |  |
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| 406.4 | . | . | . | . | . | . | . | |||||||||
| 426 | . | . | . | . | . | . | . | |||||||||
| 457 | . | . | . | . | . | . | . | |||||||||
| 478 | . | . | . | . | . | . | . | |||||||||
| 508 | . | . | . | . | . | . | . | . | ||||||||
| 529 | . | . | . | . | . | . | . | . | ||||||||
| 630 | . | . | . | . | . | . | . | . | . | |||||||
| 711 | . | . | . | . | . | . | . | . | . | . | . | |||||
| 720 | . | . | . | . | . | . | . | . | . | . | . | |||||
| 813 | . | . | . | . | . | . | . | . | . | . | . | . |  |
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| 820 | . | . | . | . | . | . | . | . | . | . | . | |||||
| 920 | . | . | . | . | . | . | . | . | . | . | ||||||
| 1020 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||
| 1220 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||
| 1420 | . | . | . | . | . | . | . | . | . | . | . | |||||
| 1620 | . | . | . | . | . | . | . | . | . | . | . | |||||
| 1820 | . | . | . | . | . | . | . | . | . | . | ||||||
| 2020 | . | . | . | . | . | . | . | . | . | |||||||
| Out Diameter | LSAW Welded Steel Pipe Wall Thickness |  |
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| Min.Yield Strength(Mpa) | |||||||||
| Inch | mm | 245(B) | 290(X42) | 360(X52) | 415(X60) | 450(X65) | 485(X70) | 555(X80) | |
| 16 | 406 | 6.0-14.0 | 6.0-13.0 | 6.0-12.0 | 6.0-11.0 | 6.0-10.5 | 6.0-10.0 | 6.0-9.0 | |
| 18 | 457 | 6.0-15.0 | 6.0-14.0 | 6.0-13.0 | 6.0-12.0 | 6.0-11.5 | 6.0-11.0 | 6.0-10.0 | |
| 20 | 508 | 6.0-16.0 | 6.0-15.0 | 6.0-14.0 | 6.0-13.0 | 6.0-12.5 | 6.0-12.0 | 6.0-11.0 | |
| 22 | 559 | 6.0-17.0 | 6.0-16.0 | 6.0-15.0 | 6.0-14.0 | 6.0-13.5 | 6.0-13.0 | 6.0-12.0 | |
| 24 | 610 | 6.0-18.0 | 6.0-17.0 | 6.0-16.0 | 6.0-15.0 | 6.0-14.5 | 6.0-14.0 | 6.0-13.0 | |
| 26 | 660 | 6.0-19.0 | 6.0-18.0 | 6.0-17.0 | 6.0-16.0 | 6.0-15.0 | 6.0-15.0 | 6.0-14.0 | |
| 28 | 711 | 6.0-20.0 | 6.0-19.0 | 6.0-18.0 | 6.0-17.0 | 6.0-16.5 | 6.0-16.0 | 6.0-15.0 |  |
| 30 | 762 | 7.0-21.0 | 7.0-20.0 | 7.0-19.0 | 7.0-18.0 | 7.0-17.5 | 7.0-17.0 | 7.0-16.0 | |
| 32 | 813 | 7.0-22.0 | 7.0-21.0 | 7.0-20.0 | 7.0-19.0 | 7.0-18.5 | 7.0-18.0 | 7.0-17.0 | |
| 34 | 864 | 7.0-23.0 | 7.0-22.0 | 7.0-21.0 | 7.0-20.0 | 7.0-19.5 | 7.0-19.0 | 7.0-18.0 | |
| 36 | 914 | 8.0-24.0 | 8.0-23.0 | 8.0-22.0 | 8.0-21.0 | 8.0-20.5 | 8.0-20.0 | 8.0-19.0 | |
| 38 | 965 | 8.0-25.0 | 8.0-24.0 | 8.0-23.0 | 8.0-22.0 | 8.0-21.5 | 8.0-21.0 | 8.0-20.0 | |
| 40 | 1016 | 8.0-26.0 | 8.0-25.0 | 8.0-24.0 | 8.0-23.0 | 8.0-22.5 | 8.0-22.0 | 8.0-21.0 | |
| 42 | 1067 | 8.0-26.0 | 8.0-25.0 | 8.0-24.0 | 8.0-23.0 | 8.0-22.5 | 8.0-22.0 | 8.0-21.0 | |
| 44 | 1118 | 9.0-27.0 | 9.0-26.0 | 9.0-24.5 | 9.0-23.5 | 9.0-22.8 | 9.0-22.0 | 9.0-21.0 | |
| 46 | 1168 | 9.0-27.0 | 9.0-26.0 | 9.0-24.0 | 9.0-23.5 | 9.0-22.8 | 9.0-22.0 | 9.0-21.0 | |
| 48 | 1219 | 9.0-28.0 | 9.0-27.0 | 9.0-25.4 | 9.0-24.0 | 9.0-23.5 | 9.0-23.0 | 9.0-22.0 | |
| 52 | 1321 | 9.0-28.0 | 9.0-27.0 | 9.0-25.4 | 9.0-24.2 | 9.0-23.5 | 9.0-23.0 | 9.0-22.0 |  |
| 56 | 1422 | 10.0-29.0 | 10.0-28.0 | 10.0-26.0 | 10.0-24.5 | 10.0-23.8 | 10.0-23.0 | 10.0-22.0 | |
| 60 | 1524 | 10.0-29.0 | 10.0-28.0 | 10.0-26.0 | 10.0-24.5 | 10.0-23.8 | 10.0-23.0 | 10.0-22.0 | |
| 64 | 1626 | 10.0-30.0 | 10.0-29.0 | 10.0-27.0 | 10.0-25.4 | 10.0-24.8 | 10.0-24.0 | 10.0-23.0 | |
| 68 | 1727 | 10.0-30.0 | 10.0-29.0 | 10.0-27.0 | 10.0-25.4 | 10.0-24.8 | 10.0-24.0 | 10.0-23.0 | |
| 72 | 1829 | 10.0-30.0 | 10.0-29.0 | 10.0-27.0 | 10.0-25.4 | 10.0-24.8 | 10.0-24.0 | 10.0-23.0 | |
SAW Welded steel pipe Standards
| Tolerance of Outside Diameter and Wall Thickness | ||||||
| Standard | Tolerance of Pipe Body | Tolerance of Pipe End | Tolerance of Wall Thickness | |||
| Out Diameter | Tolerance | Out Diameter | Tolerance | |||
| API 5L PSL1/PSL2 | OD<60.3 | -0.8mm～+0.4mm | OD≤168.3 | -0.4mm～+1.6mm | WT≤5.0 | ≤±0.5 |
| 60.3≤OD≤168.3 | ≤±0.75% | 168.3 | ≤±1.6mm | 5.0 | ≤±0.1T | |
| 168.3 | ≤±0.75% | 610 | ≤±1.6mm | T≥15.0 | ≤±1.5 | |
| 610 | ≤±4.0mm | OD>1422 | - | - | - | |
| OD>1422 | - | - | - | - | - | |
| API 5CT | OD<114.3 | ≤±0.79mm | OD<114.3 | ≤±0.79mm | ≤-12.5% | |
| OD≥114.3 | -0.5%～1.0% | OD≥114.3 | -0.5%～1.0% | ≤-12.5% | ||
| ASTM A53 | ≤±1.0% | ≤±1.0% | ≤-12.5% | |||
| ASTM A252 | ≤±1.0% | ≤±1.0% | ≤-12.5% | |||
| Standard | Grade | Chemical Composition(max)% | Mechanical Properties(min) | |||||
| C | Si | Mn | P | S | Tensile Strength(Mpa) | Yield Strength(Mpa) | ||
| API 5CT | h40 | - | - | - | - | 0.03 | 417 | 417 |
| J55 | - | - | - | - | 0.03 | 517 | 517 | |
| K55 | - | - | - | - | 0.3 | 655 | 655 | |
| API 5L PSL1 | A | 0.22 | - | 0.9 | 0.03 | 0.03 | 335 | 335 |
| B | 0.26 | - | 1.2 | 0.03 | 0.03 | 415 | 415 | |
| X42 | 0.26 | - | 1.3 | 0.03 | 0.03 | 415 | 415 | |
| X46 | 0.26 | - | 1.4 | 0.03 | 0.03 | 435 | 435 | |
| X52 | 0.26 | - | 1.4 | 0.03 | 0.03 | 460 | 460 | |
| X56 | 0.26 | - | 1.4 | 0.03 | 0.03 | 490 | 490 | |
| X60 | 0.26 | - | 1.4 | 0.03 | 0.03 | 520 | 520 | |
| X65 | 0.26 | - | 1.45 | 0.03 | 0.03 | 535 | 535 | |
| X70 | 0.26 | - | 1.65 | 0.03 | 0.03 | 570 | 570 | |
| API 5L PSL2 | B | 0.22 | 0.45 | 1.2 | 0.025 | 0.015 | 415 | 415 |
| X42 | 0.22 | 0.45 | 1.3 | 0.025 | 0.015 | 415 | 415 | |
| X46 | 0.22 | 0.45 | 1.4 | 0.025 | 0.015 | 435 | 435 | |
| X52 | 0.22 | 0.45 | 1.4 | 0.025 | 0.015 | 460 | 460 | |
| X56 | 0.22 | 0.45 | 1.4 | 0.025 | 0.015 | 490 | 490 | |
| X60 | 0.12 | 0.45 | 1.6 | 0.025 | 0.015 | 520 | 520 | |
| X65 | 0.12 | 0.45 | 1.6 | 0.025 | 0.015 | 535 | 535 | |
| X70 | 0.12 | 0.45 | 1.7 | 0.025 | 0.015 | 570 | 570 | |
| X80 | 0.12 | 0.45 | 1.85 | 0.025 | 0.015 | 625 | 625 | |
| ASTM A53 | A | 0.25 | 0.1 | 0.95 | 0.05 | 0.045 | 330 | 330 |
| B | 0.3 | 0.1 | 1.2 | 0.05 | 0.045 | 415 | 415 | |
| ASTM A252 | 1 | - | - | - | 0.05 | - | 345 | 345 |
| 2 | - | - | - | 0.05 | - | 414 | 414 | |
| 3 | - | - | - | 0.05 | - | 455 | 455 | |
SAW Welded steel tube Process
SSAW (Spiral Submerged Arc Welding) welded steel tube process involves several key steps:
Spiral Forming Process
The precise alignment of the steel strip into a spiral form determines the dimensional accuracy and roundness of the pipe.
Welding Process
Combine the edges of the steel coils together to form a continuous pipeline.
Coating and Anti-corrosion
Use coating materials with consistent thickness (such as epoxy resin, polyethylene).
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spiral steel tube Packing &Loading
Youfa steel pipes are packaged and transported in boxes according to regulations and customer requirements.Great care is taken to avoid any damage which might be caused during storage or transportation. In addition, clear labels are tagged on the outside of the packages for easy identification of the product I. D. and quality information.
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sAW spiral carbon steel pipe products
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Application of SAW Carbon Welded Steel Pipe
Oil and Gas Transmission
SAW pipes are suitable for long-distance pipelines transporting oil and natural gas due to their ability to appropriate coatings (such as 3LPE or FBE) and withstand high pressure.
Water Supply and Sewage Systems
SAW pipelines are ideal for transporting large amounts of water or waste due to their larger diameter.Example: Municipal water supply system, sewage treatment plant, irrigation pipeline.
Offshore and Marine Applications
The structural integrity of SAW pipelines makes them an ideal choice for carrying heavy loads in marine environments.Example: Subsea pipelines, risers, and offshore oil drilling platforms.
Piling Applications
Submerged arc welded pipes are used for pile driving, especially in deep foundations where bearing capacity is crucial.Example: Pile driving for foundations of bridges, ports, high-rise buildings, and industrial structures.
Agricultural Irrigation
Submerged arc welded pipes are commonly used in large-scale irrigation systems, especially in areas that require long-distance water transportation.Example: Long distance irrigation pipelines and water distribution systems on a farm
Chemical and Petrochemical Industry
SAW tubes are used for transporting chemicals, liquids, and gases in the chemical and petrochemical industries.Example: Chemical processing plants, refineries, and hazardous material storage facilities.
Why Choose YOUFA Steel Pipe?
Tianjin Youfa Steel Pipe Group Co., Ltd. was established on July 1, 2000, Youfa is a large scale steel products manufacturing enterprise. In December 2020, Youfa Group successfully landed on the main board of Shanghai Stock Exchange .We mainly manufacture ERW steel pipe, galvanized steel pipe, hollow section steel pipes, SSAW steel pipe, plastic lining composite pipe, plastic coated steel pipe, stainless steel pipe and pipe fitting, and scaffolding, etc.
We have built a long-term cooperation with many clients, and have received word of praise from customers all over the world.possessing normative QAS, we have acquired certificates of API5L, ISO9001,ISO14000, ISO18000, FPC, BSI and UL/FM quality system.We are committed to meet customer's various after-processing requirements.
Carbon steel pipes meet the following standards: API 5L, ASTM A53/A500,ASTM A795, EN10219/10255, BS1387,BS1139, EN39, ISO65, DIN2440, JIS G3444/3466, etc. and are approved by the Third Party. They are widely used in oil and natural gas, low pressure liquid and mineral powder delivery, and for industrial and civil construction fields and for piles field