Description
Vertically Integrated SSAW Pipe Mill — Own steel production facility with 3 lines and 2,800+ raw material specifications ensures full material-to-fabrication traceability for API 5L X42 X52 X60 X65 spiral welded steel pipe orders.
Technical Specifications
| Parameter | Value |
|---|---|
| Designation | X42-X65 Spiral Welded Steel Pipe |
| Product Type | Spiral Welded Steel Pipe (SSAW) |
| Steel Grade | X42, X52, X60, X65, L245, L290, L360, L390, L415, Q195, Q235, Q345, ASTM A36, ASTM A53, ASTM A106, ASTM A500, SS400, St37, St52, S235JR, S355JR |
| Standard | API 5L, ASTM A53, ASTM A106, ASTM A500, GB/T 3091, GB/T 9711, EN 10219 |
| Section Shape | Round |
| Size Range | OD 10–1000 mm (18–100 inch) |
| Wall Thickness | 1–80 mm |
| Length | 1–12 m (or customized) |
| Technique | Spiral Welded / Hot Rolled |
| Surface Treatment | Black Painting / 3PE / Epoxy / Galvanized (customizable) |
| Ends | Plain / Beveled |
| Tolerance | ±1% |
| Application | Oil & gas transmission pipeline, fluid transport, piling, construction structural pipe, infrastructure projects |
| MOQ | 5 Tons |
| Origin | Shandong, China |
Application Suitability
| Industry | Typical Applications |
|---|---|
| Oil & Gas EPC | Onshore and offshore transmission pipelines, gathering lines, flow lines |
| Infrastructure & Piling | Foundation piling for bridges, port structures, and industrial platforms |
| Industrial Construction | Water supply networks, gas distribution mains, pump well casing |
| General Contracting | Structural pipe columns, conveyor supports, warehouse frame systems |
What Material Traceability Gaps Cost on a Pipeline Project
A single missing heat number can halt customs clearance and delay an entire EPC schedule.
When buyers source spiral welded pipe from a fabricator who purchases raw plate from third-party mills, the certification chain breaks. Heat numbers on the mill test certificate no longer match the coils that were actually formed and welded. On a recent Middle East piling job, the client’s third-party inspector flagged mismatched heat numbers across three containers — the entire batch was held for re-verification, adding weeks to the project timeline. With our vertically integrated mill producing both the raw steel and the finished API 5L X42 X52 X60 X65 spiral welded steel pipe, every coil is tracked from chemical composition through forming, welding, and final NDT. [NEED_CITE: material traceability requirements in API 5L PSL2]
How SSAW Pipe Meets Piling and Pipeline Demands
Spiral welded pipe covers the OD range from 18 inch to 100 inch with wall thickness up to 80 mm, making it suitable for both thin-wall fluid transport and heavy-wall foundation piling. The spiral seam geometry distributes stress more evenly across the weld line under external soil loading — a critical factor for buried piling in coastal reclamation projects across Southeast Asia and the Middle East. Our API 5L X42 X52 X60 X65 spiral welded steel pipe is produced with certified WPS/PQR procedures and qualified welders, backed by in-process UT, RT, and MT testing at every stage.
Engineering Compliance for Pipeline and Piling Standards
Pipeline projects governed by API 5L require PSL1 or PSL2 compliance depending on operating pressure and service environment. PSL2 demands tighter chemical composition limits, mandatory Charpy impact testing, and full NDT coverage — requirements that cannot be verified after the pipe leaves the mill. For structural piling applications, EN 10219 and ASTM A500 govern dimensional tolerances and mechanical properties, and customs authorities in EU markets increasingly require CE marking documentation at the point of entry. [NEED_CITE: EN 10219 cold-formed hollow section dimensional tolerances] Beveled ends per API 5L or custom angle bevels are available to match field welding procedures, reducing on-site rework.
Understanding Steel Grade Selection for SSAW Pipe
The API 5L grade system designates minimum yield strength — X42 indicates 42,000 psi, X52 indicates 52,000 psi, and so on through X65. Higher grades allow thinner wall thickness for the same design pressure, reducing material weight and shipping cost per kilometer of pipeline. However, higher strength grades also demand stricter welding parameters and more rigorous NDT coverage. The spiral welding process itself offers a distinct advantage over straight-seam ERW for large-diameter pipe: the helical seam geometry allows production of diameters exceeding 100 inch from narrower plate, and the weld path length distributes residual stress more uniformly. Surface protection selection depends on the service environment — 3PE coating provides mechanical damage resistance for buried pipelines, while epoxy FBE suits high-temperature offshore applications, and hot-dip galvanizing serves above-ground structural and piling exposure. [NEED_CITE: 3PE coating system performance in buried pipeline applications]
Hidden Costs of Incorrect Grade Specification and Certification Gaps
Specifying X52 when the design calls for X65 means the pipe may pass visual inspection but fail hydrostatic testing at the required pressure — a discovery made only after the pipe is already welded into the line. Conversely, over-specifying X65 for a low-pressure water main wastes budget on unnecessary material cost and coating complexity. Beyond grade mismatch, missing or inconsistent documentation triggers customs holds, third-party inspection rejections, and ultimately project delay penalties. [NEED_CITE: API 5L PSL1 vs PSL2 testing requirements]
Why Procure API 5L X42 X52 X60 X65 Spiral Welded Steel Pipe from Our Mill
Our facility operates its own steel production line with 3 production lines and over 2,800 raw material specifications in stock, eliminating the gap between plate supplier and pipe fabricator. Every API 5L X42 X52 X60 X65 spiral welded steel pipe order is backed by in-house laboratory verification of chemical composition and mechanical properties before shipment. We hold API 5L, CE EN 10219, and ISO 9001 certifications, and accept third-party inspection from SGS, BV, TÜV, and Lloyds at any production stage. Custom length cutting, beveled end preparation, and factory-applied 3PE or FBE coating are integrated into a single order — no need to coordinate across multiple subcontractors. Professional loading plans are prepared for every container, accounting for pipe OD, wall thickness, and weight distribution to prevent transit damage.
Documentation & Compliance
- Mill test certificate documenting X42–X65 chemical composition, yield strength, and tensile properties per API 5L PSL1 or PSL2
- CE certificate per EN 10219 for structural hollow sections exported to EU markets
- ISO 9001 quality management system certificate covering the full production process
- SGS or BV third-party inspection report available at forming, welding, NDT, and coating stages
- Full material traceability by heat number from raw steel coil through finished pipe
- Complete export documentation including packing list, bill of lading, and certificate of origin
Packaging, Loading & Delivery
- API 5L spiral welded pipe bundled with steel strips and padded separators to protect 3PE and epoxy coating during ocean transit
- Beveled ends fitted with plastic protectors to prevent damage to groove preparation before field welding
- Container loading plans optimized for OD 18–100 inch pipe, maximizing payload per 40ft OT or flat rack container
- Custom length cutting to 1–12 m per project specification, with length marked on each pipe alongside heat number and steel grade
- Galvanized pipe bundled with edge protectors to preserve zinc coating integrity during handling and shipping
- FOB, CIF, and DDP terms available with door-to-door logistics coordination for oversized cargo
Getting Your Project Quotation Started
Submit your project drawings, required steel grade, OD and wall thickness, surface treatment specification, and destination port. Our engineering team responds within 24 hours with a detailed quotation covering material, fabrication, coating, packing, and shipping — including shop drawing timeline and production schedule.
Request Your API 5L Spiral Welded Pipe Quotation
Share your project specifications, steel grade, and quantity to receive a detailed quotation with mill test certificate documentation.
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 is the difference between API 5L PSL1 and PSL2 for spiral welded pipe?
A: PSL2 imposes stricter chemical composition limits, mandatory Charpy impact testing, and more comprehensive NDT coverage compared to PSL1. The choice depends on your pipeline’s operating pressure, service environment, and the governing engineering specification. Our API 5L X42 X52 X60 X65 spiral welded steel pipe is produced to either PSL1 or PSL2 requirements per your project specification.
Q: How do you ensure material traceability from raw steel to finished pipe?
A: Every coil used in production is tracked by heat number from our own steel mill through forming, spiral welding, NDT testing, and final inspection. The mill test certificate references the same heat number, providing a continuous chain of custody that satisfies third-party inspector and customs requirements.
Q: What surface protection options are available for corrosive or offshore environments?
A: We offer 3PE anti-corrosion coating for buried pipelines requiring mechanical damage resistance, epoxy FBE for high-temperature or offshore applications, black painting for general indoor or short-term outdoor use, and hot-dip galvanizing for above-ground structural and piling exposure. The coating is applied in-house as part of the integrated production process.
Q: Can you supply custom length, beveled ends, and coating in a single order?
A: Yes. Custom cutting to 1–12 m, beveled end preparation per API 5L or your specified angle, and factory-applied 3PE, FBE, or galvanized coating are all handled within our facility. This eliminates the need to coordinate across separate cutting, welding preparation, and coating subcontractors.
Q: What is the typical production lead time and how do you handle oversized pipe shipping?
A: Lead time depends on order quantity, steel grade availability, and coating requirements. We prepare professional container loading plans for every shipment, accounting for pipe OD, wall thickness, and weight distribution. For oversized cargo exceeding container dimensions, flat rack and break-bulk options are coordinated with complete export documentation.
