API 5L SSAW Steel Pipe
Standards: API 5L (PSL1, PSL2), ASTM A252, ASTM A53, EN10217
Steel Grades: Gr.B, X42, X46, X52, X56, X60, X70, X80
Outside Diameter (OD): 219mm – 3020mm (8″ – 120″)
Wall Thickness (WT): 5mm – 25.4mm
Length: 6m – 12m (Custom lengths up to 18m available)
Pipe Ends: Beveled ends, Square cut, or Flanged
Production Description
SSAW (Spiral Submerged Arc Welded) Steel Pipe, often referred to as spiral welded pipe, is the backbone of long-distance liquid and gas transportation. By utilizing the spiral forming technology, we produce large-diameter pipes from narrower steel strips, ensuring both cost-efficiency and structural integrity.
Whether you are working on a municipal water project, a high-pressure oil line, or structural piling, our API 5L and ASTM-compliant SSAW pipes offer the dimensional accuracy and durability required for the most demanding environments.
Technical Specifications & Range
To help you select the right grade for your project, we maintain a strict adherence to international standards.
Standard:
API 5L (PSL1, PSL2), ASTM A252, ASTM A53, EN10217
ASTM A53: Gr. A, Gr. B, Gr. C, Gr. D;
API 5L: A, B, X42, X46, X52, X56, X60, X65, X70
EN10217: S355JRH, ST44, ST37, ST52
Outside Diameter: 219.1 mm – 2540mm (8″-100″);
Wall Thickness: 6mm – 25.4mm;
Length: 6- 22 m
Ends: Beveled Ends, Square Cut, With LTC/STC/BTC/VAM Connection
Surface: Lightly oiled, Hot dip galvanized, Electro galvanized, Black, Bare, Varnish coating/Anti rust oil, Protective Coatings (Coal Tar Epoxy, Fusion Bond Epoxy, 3-layers PE)
Delivery: Within 30 days and Depends on your order quantity
Supply Ability: 10000 Piece/Pieces per Month
Payment: TT, LC, OA, D/P
Packing: In Bulk, Ends Protector on Both Sides, Waterproof Materials Wrapped
Common Applications
Our SSAW steel pipes are currently serving in various global sectors:
- Oil & Gas Transmission: High-pressure trunklines for crude oil and natural gas.
- Water Infrastructure: Municipal water supply, drainage, and irrigation systems.
- Structural Piling: Foundation piles for bridges, docks, and high-rise buildings.
- Heating Systems: Thermal power plant piping and urban central heating networks.
Quality Assurance & Testing
Trust is built on data. Every API 5L SSAW pipe leaving our facility undergoes a series of mandatory tests to ensure it meets the PSL1 or PSL2 requirements:
Hydrostatic Testing: Every joint is tested to ensure zero leakage under pressure.
Ultrasonic & X-Ray Inspection: 100% non-destructive testing (NDT) of the weld seam.
Mechanical Testing: Tensile, Flattening, and Charpy V-Notch impact tests performed in our CNAS certified lab.
Third-Party Inspection: We welcome and facilitate inspections by SGS, BV, or ABS based on your project needs.
Why Choose Our SSAW Steel Pipes? (The Factory Advantage)
Not all spiral pipes are created equal. Our manufacturing process focuses on three core pillars:
Superior Stress Distribution
Unlike longitudinal welded pipes (LSAW), the spiral weld seam of our SSAW pipe distributes internal pressure more evenly. The weld line is usually 75% to 95% of the pipe’s principal stress direction, which significantly reduces the risk of crack propagation.
High Dimensional Precision
We utilize advanced automated forming systems. This ensures that the diameter, wall thickness, and “out-of-roundness” tolerances are kept much tighter than standard industry requirements, making on-site welding and installation much smoother.
Versatile Coating Options
To extend the service life of your pipeline, we offer integrated anti-corrosion services in-house:
External: 3PE, FBE, or Coal Tar Epoxy.
Internal: Liquid Epoxy, Cement Mortar Lining, or Bitumen.
Frequently Asked Questions (FAQ)
Q: Can SSAW pipes handle high-pressure gas lines?
A: Yes. When produced to API 5L PSL2 standards with high grades like X60 or X70, SSAW pipes are excellent for high-pressure transmission due to their balanced stress distribution.
Q: What is the main advantage of SSAW over LSAW?
A: Cost-efficiency for large diameters. SSAW can produce very large pipes from standard-width steel coils, which reduces material sourcing costs without sacrificing strength.
Q: Do you provide Mill Test Certificates (MTC)?
A: Absolutely. All shipments come with a full MTC according to EN 10204 3.1, detailing chemical composition and mechanical properties.
Get a Factory-Direct Quote Today
Are you planning a pipeline project that requires reliable API 5L SSAW steel pipes? Our engineering team is ready to provide technical support and competitive pricing.
Please do not hesitate to contact me if you have any queries on our products.
It is possible to produce welded pipes with large diameters with narrow blanks, and it is also possible to produce welded pipes with different pipe diameters with blanks of the same width in our factory. The production cost is low, the process is simple, and it is easy to produce large-diameter pipes. Large-diameter welded pipes are mostly made by spiral submerged arc welding.
Cooperate with Rayoung, you will enjoy the following benefits.
Rayoung–A leading Butt Weld pipe fittings, flanges and steel pipes supplier& factory in China.
We’re here to help with your industry pipe fittings and flange needs. Rayoung has been in the business of industrial pipe fittings since 1983, and we’re confident we can help you find a solution more quickly, affordably, and with greater expertise than the competition.
We’d love to learn more about your project today!
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