Description
API 5L PSL2 SSAW Steel Pipe X42-X85 OD 219-3620mm Manufacturer
Factory-Direct SSAW Pipe Production — From raw steel coil to finished spiral welded pipe under one quality system, with API 5L PSL2 compliance and full heat-number traceability for pipeline projects.
Technical Specifications
| Parameter | Value |
|---|---|
| Designation | API 5L PSL2 SSAW Steel Pipe |
| Product Type | Spiral Submerged Arc Welded (SSAW) Steel Pipe / Round Steel Pipe |
| Steel Grade | Q195, Q235, Q345, S235JR, S275JR, S355JR, GR.B, ST52, ST42, ST35, ST45, X42, X52, X56, X60, X70, X85 |
| Standard | API 5L, API 5CT, API 5DP, EN 10219, EN 10217, ASTM A53, ASTM A106, ASTM A210, ASTM A513, ASME B36.19M, ANSI B36, BS 1387, BS 6363, DIN 1626, DIN 1629/4, GB/T 8162, GB 13296, GB 18248 |
| Section Shape | Round |
| Size Range | Outer Diameter 219–3620 mm (8″–142″) |
| Wall Thickness | 5–30 mm (SCH10–SCH160, XS, XXS) |
| Length | 3–12 m (SRL / DRL / Fixed length as requested) |
| Technique | SSAW (Spiral Submerged Arc Welded) |
| Surface Treatment | Black Painted / Varnish / Oiled / Galvanized / 3PE / 3LPE Anti-corrosion Coated |
| Ends | Beveled Ends with Plastic Caps (small OD) / Iron Protector (large OD) |
| Tolerance | ±1% |
| Application | Fluid transport (oil, gas, water) / Structure pipe / Boiler pipe / Drill pipe / Hydraulic pipe / Chemical fertilizer pipe / Long-distance submarine pipeline |
| MOQ | 2 Tons |
| Origin | Shandong, China |
Application Suitability
| Industry | Typical Applications |
|---|---|
| Oil & Gas Pipeline | Long-distance submarine and buried transmission pipelines for crude oil, natural gas, and refined products |
| Water Infrastructure | Municipal water supply mains, desalination plant intake and outfall lines, irrigation conveyance systems |
| Industrial Plant | Process fluid transport piping, chemical fertilizer distribution lines, cooling water circulation systems |
| Structural Foundation | Bridge pier casing pipes, offshore platform jacket legs, pile foundation sleeves for port and marine construction |
| Power & Energy | Boiler feed water lines, coal ash slurry transport pipes, wind turbine foundation anchor bolts casing |
What Negative Wall Tolerance Costs on a Submarine Pipeline Order
A pipe that passes visual inspection at the mill can still fail hydrostatic acceptance at the laybarge.
When buyers source API 5L PSL2 SSAW steel pipe for subsea or buried transmission lines, the most expensive surprise is not a cracked weld — it is a wall thickness that drifts below the minimum specified in the purchase order. A negative tolerance beyond the allowed ±1% means the pipe arrives at the coating plant or laybarge with insufficient pressure containment margin. The entire batch gets rejected, coating is stripped, and replacement pipes must be manufactured and shipped — adding weeks to a project that already runs on a marine weather window. [NEED_CITE: API 5L PSL2 dimensional tolerance requirements for wall thickness]
Matching Large-Diameter SSAW Pipe to Subsea and Buried Pipeline Environments
An API 5L PSL2 SSAW steel pipe with outer diameters spanning 219–3620 mm covers the full range from onshore gathering lines to major subsea trunk pipelines. The spiral weld geometry distributes residual stress more evenly than longitudinal seam alternatives on large diameters, which matters when pipes must withstand external hydrostatic pressure at depth combined with internal operating pressure. For submarine applications, the 3PE or 3LPE anti-corrosion coating system provides a multi-layer barrier — fusion-bonded epoxy primer, copolymer adhesive, and polyethylene outer shell — that resists cathodic disbondment in seawater environments.
Engineering Compliance and Certification for Pipeline Projects
Pipeline operators and EPC contractors specify API 5L PSL2 because it demands stricter chemical composition controls, mandatory Charpy impact testing, and full traceability from heat to finished pipe compared to PSL1. [NEED_CITE: API 5L PSL2 vs PSL1 supplementary testing requirements] For projects crossing international waters or landing in EU jurisdictions, compliance with EN 10217 for welded steel tubes may also be required alongside API certification. The steel grade selection — from X42 for moderate-pressure onshore lines to X70 or X85 for high-pressure deep-water transmission — directly determines the design wall thickness and therefore the pipe weight per meter, which drives both material cost and installation vessel capacity planning.
Steel Grade Progression and SSAW Process Fundamentals
The API 5L grade designations from X42 through X85 indicate minimum yield strength in ksi (42,000 psi through 85,000 psi), with each step up requiring tighter control of carbon equivalent and microalloying elements like niobium, vanadium, and titanium. Under PSL2, the carbon equivalent ceiling is enforced to maintain weldability — critical for SSAW pipe where the spiral seam undergoes both internal and external submerged arc welding passes. The SSAW process itself forms the pipe from a continuously fed steel coil at a helical angle, which allows a single coil width to produce multiple outer diameters. This gives production flexibility for project-specific diameter combinations that would require separate mill setups in longitudinal welded pipe production. [NEED_CITE: SSAW vs LSAW manufacturing process comparison for large diameter pipe]
Hidden Costs of Sourcing SSAW Pipe Without Verified Traceability
When an API 5L PSL2 SSAW steel pipe arrives at the project site without a mill test certificate tied to a specific heat number, the buyer faces a cascade of consequences. Third-party inspectors cannot verify chemical composition or mechanical properties. The pipe cannot be cleared through customs in jurisdictions requiring EN 10204 3.2 inspection certificates. Welding procedure qualifications that referenced the original material specification become invalid. And if the pipe has already been coated with 3PE before the documentation gap is discovered, stripping and recoating adds cost that far exceeds the original price difference between a verified and unverified supplier. [NEED_CITE: EN 10204 inspection certificate types for steel products]
Why Pipeline Contractors Source from Our Integrated Facility
Our own steel production facility supplies the raw coil that becomes your finished SSAW pipe — there is no gap between material supplier and pipe manufacturer. Every heat of steel is tested in our CNAS-accredited laboratory before it reaches the forming line, and the heat number follows the coil through every forming, welding, and coating step. This vertical integration means the API 5L PSL2 SSAW steel pipe you receive carries a mill test certificate that we issue ourselves, not one collected from a third-party trader who never saw the material produced. For projects requiring X42 through X85 grades in diameters up to 3620 mm, we hold over 2,800 raw material specifications in inventory, so your project does not wait for a coil to be rolled before fabrication begins. Every weld is performed under qualified WPS procedures by AWS/EN certified welders, and in-process NDT includes ultrasonic testing of the spiral seam per API 5L requirements.
Documentation & Compliance
- Mill Test Certificate (EN 10204 3.1/3.2) documenting X42–X85 chemical composition, yield strength, tensile strength, and Charpy impact values per API 5L PSL2 for each heat number
- API 5L certification covering PSL2 supplementary requirements including mandatory hydrostatic testing and non-destructive examination of spiral weld seams
- Third-party inspection reports from SGS, BV, or CCIC covering dimensional verification, visual weld inspection, coating thickness measurement, and holiday detection on 3PE/3LPE coated surfaces
- Welding Procedure Specification (WPS) and Procedure Qualification Record (PQR) for internal and external submerged arc welding passes on each steel grade produced
- Coating inspection reports documenting fusion-bonded epoxy primer adhesion, polyethylene shrinkage, and cathodic disbondment resistance test results per project specification
- Complete customs documentation package including packing list, bill of lading, certificate of origin, and material traceability summary organized by heat number and pipe tag
Packaging, Loading & Delivery
- X42–X85 grade SSAW pipes bundled with high-tensile steel strips at intervals calculated for the pipe diameter and wall thickness, preventing bundle shift during ocean transit
- 3PE and 3LPE anti-corrosion coated pipes fitted with rubberized edge protectors at both ends to prevent coating damage from contact with adjacent pipes or lifting slings
- Large-diameter pipes (above 1500 mm OD) loaded as breakbulk or on flat racks with welded steel cradle supports, while smaller diameters (219–900 mm) are container-loaded with internal chocking to maximize payload per shipment
- Beveled ends protected by plastic caps on small-diameter pipes and welded iron protectors on large-diameter pipes to preserve the bevel angle for field welding
- Each pipe stenciled with heat number, steel grade, outer diameter, wall thickness, and length for immediate identification at the laybarge or construction site
- Shipping terms available as FOB, CIF, or DDP with professional oversized cargo loading plans and complete export documentation tracking until site delivery
How to Initiate Your Pipeline Pipe Inquiry
Share your project drawings, steel grade requirements (X42 through X85), outer diameter and wall thickness specifications, coating system preference, and destination port. We respond within 24 hours with a preliminary technical assessment, pricing covering material through coating and packing, and a shop drawing timeline showing when fabrication can begin after your approval.
Request Your API 5L PSL2 SSAW Pipe Quotation
Submit your pipeline specifications, steel grade, diameter, wall thickness, and quantity to receive a detailed quotation with mill test certificate samples and third-party inspection options.
Shandong Xin Jiyuan Special Steel Tube Co., Ltd
Website: www.xjystructure.com
Tel: +86 531 8573 6315
Mobile/WhatsApp/WeChat: +86 188 5315 7756
Email: admin@xjystructure.com
Address: No.11889, Jingshi West Road, Lulian Group, Jinan City, Shandong Province, China
Frequently Asked Questions
Q: What are the key differences between API 5L PSL1 and PSL2 for pipeline projects?
A: API 5L PSL2 requires mandatory Charpy impact testing, stricter chemical composition limits including carbon equivalent ceilings, full traceability by heat number, and supplementary non-destructive examination of all weld seams. PSL1 covers basic chemical and tensile requirements without mandatory impact testing or the same level of traceability documentation. For subsea, high-pressure, or sour service pipelines, PSL2 is typically specified by the project operator.
Q: How does XJY Structure ensure material traceability from steel coil to finished SSAW pipe?
A: Our own steel production facility supplies the raw coil, so every heat of steel is tested in our in-house CNAS-accredited laboratory before forming begins. The heat number is stamped on the coil and follows the material through forming, internal and external submerged arc welding, hydrostatic testing, NDT, coating, and final inspection. The mill test certificate you receive references the same heat number that appears on each pipe.
Q: What anti-corrosion coating options are available for submarine pipeline applications?
A: We offer 3PE (three-layer polyethylene) and 3LPE (three-layer polypropylene) coating systems specifically designed for subsea and buried environments. These consist of a fusion-bonded epoxy primer for adhesion and corrosion resistance, a copolymer adhesive interlayer, and a polyethylene or polypropylene outer mechanical protection layer. We also provide galvanized coating and black painted or oiled finishes for less aggressive environments.
Q: Can you provide third-party inspection before shipment?
A: Yes. We accommodate third-party inspection by SGS, BV, or CCIC at any stage of production — from raw material verification through dimensional checks, weld NDT review, coating inspection, and final loading supervision. The inspection scope is agreed before production begins and documented in the quality plan.
Q: What is the typical production lead time and loading plan for large-diameter SSAW pipes?
A: Lead times depend on steel grade, diameter, wall thickness, coating requirements, and order quantity. For standard grades like X42 and X52 with 3PE coating, typical production lead times apply once shop drawings are approved and the deposit is received. Large-diameter pipes above 1500 mm OD are loaded as breakbulk or on flat racks with custom steel cradle supports, while smaller diameters are container-loaded with internal chocking to maximize payload.
