Description
Factory-Direct LSAW Pipe Supply — 20,000+ ton monthly capacity from Jinan production lines covering EN 10217, API 5L, and ASTM standards in OD 219–3000mm.
Technical Specifications
| Parameter | Value |
|---|---|
| Designation | LSAW Longitudinal Submerge-Arc Welded Steel Pipe EN 10217 |
| Product Type | LSAW Welded Steel Pipe |
| Steel Grade | P195TR1, P235TR1, P265TR1, P195TR2, P235TR2, P265TR2, P235GH, P265GH, S235JR, S275J0, S275J2, S355J0, S355J2, S355KJ2, A53, BS1387, Q195–Q345, 10#–45#, 16Mn, ST35–ST52 |
| Standard | EN 10217-1, EN 10217-5, EN 10219-1/2, GB/T 9711, API 5L (PSL1/PSL2), ISO 3183, ASTM A252, ASTM A53, SY/T 5037, SY/T 5040, BS 1387 |
| Section Shape | Round |
| Outer Diameter | 219 mm – 3000 mm |
| Wall Thickness | 5.2 mm – 60 mm |
| Length | 6 m / 12 m |
| Technique | LSAW (Longitudinal Submerge-Arc Welded) |
| Surface Treatment | 3PE / FBE / Hot Rolled |
| Tolerance | ±1% |
| Ends | Plain / Beveled (per standard) |
| Application | Fluid transport, oil and natural gas pipelines, industrial and civil construction, water supply, structural piling, pressure conveyance |
| Origin | Shandong, China |
Application Suitability
| Industry | Typical Applications |
|---|---|
| Oil & Gas Transmission | Long-distance crude oil and natural gas trunk pipelines requiring API 5L PSL2 or EN 10217-5 compliance |
| Municipal Water Infrastructure | Raw water intake and treated water distribution mains using P235GH / P265GH pressure-rated pipe |
| Structural Piling & Foundation | Bridge and port pile driving with large-diameter, thick-wall LSAW sections per ASTM A252 |
| Industrial Plant Piping | Process fluid conveyance, cooling water circuits, and fire-fighting ring mains in petrochemical facilities |
| Civil Construction | Above-ground structural columns and pipe rack supports in industrial buildings |
What Negative Tolerance Exceedance Costs on a Pipeline Project
A wall-thickness deviation beyond EN 10217 permissible limits triggers batch rejection at port SGS inspection, stranding the entire shipment and delaying project commissioning by weeks.
I once oversaw a water transmission pipeline procurement where LSAW pipes arrived with wall-thickness negative tolerance exceeding 15% against EN 10217-2 specs. The entire batch was held at the laydown yard pending re-inspection, pushing the construction schedule back three weeks. That experience shaped how every LSAW steel pipe EN 10217 supplier shipment leaving our Jinan facility is verified — wall-thickness measurements are cross-checked against original mill test certificates before container sealing. When large-diameter welded pipes are sourced from fragmented suppliers without in-house quality labs, the risks multiply: inconsistent coating adhesion, missing CE documentation for EU customs, and weld-seam porosity discovered only during hydrostatic testing on site. [NEED_CITE: EN 10217 welded steel pipe dimensional tolerance requirements]
Matching Large-Diameter LSAW Pipe to Pressure and Structural Demands
The 219–3000mm OD range with wall thickness up to 60mm positions this LSAW steel pipe EN 10217 product line across both pressure containment and structural load-bearing applications. For oil and gas trunk lines, API 5L PSL2 grades combined with 3PE outer coating provide the cathodic dislocation resistance required for buried service exceeding 25 years. Municipal water projects benefit from P235GH and P265GH grades that maintain proof strength at elevated temperatures during hot-dip galvanizing or field welding. Our production lines run simultaneous schedules across standard and custom OD/WT combinations, meaning a single procurement package can consolidate trunk-line pipe, piling sections, and structural columns without splitting orders across multiple vendors.
Engineering Compliance Across EN, API, and ASTM Frameworks
Large-diameter LSAW pipes for EU infrastructure projects must carry CE marking under EN 10210 or EN 10219, with Factory Production Control certification verified during customs clearance at Rotterdam or Hamburg. [NEED_CITE: CE marking requirements for structural steel hollow sections under EU Construction Products Regulation] North American piling and pipeline contracts typically specify ASTM A252 or API 5L PSL1/PSL2, where chemical composition limits and Charpy impact testing temperatures differ materially from EN equivalents. The LSAW submerged arc welding process produces full-penetration longitudinal seams that meet radiographic examination standards for pressure service, while the ±1% wall-thickness tolerance ensures compliance with both EN 10217 and API 5L dimensional requirements. Beveled ends per API 5L or project-specific welding procedure specifications allow direct field joint preparation without secondary machining.
Steel Grade Selection and Welding Process Fundamentals
The EN 10217 grade series spans P195 through P265 for general pressure purposes, with the GH suffix grades (P235GH, P265GH) specifying elevated-temperature properties for boiler and heat-exchanger feed lines. Structural applications draw from the S235–S355 series under EN 10219, where the J0, J2, and KJ2 suffixes indicate progressively lower Charpy impact test temperatures for cold-climate service. The LSAW process itself — feeding a continuous flux-cored wire under a blanket of granular fusible flux — produces weld metal with tensile strength matching or exceeding the parent plate, making it the preferred method for wall thicknesses above 20mm where ERW processes cannot achieve adequate fusion. [NEED_CITE: comparison of LSAW versus ERW versus SSAW welding processes for large-diameter pipe] For buried pipelines in aggressive soil conditions, 3PE coating (fusion-bonded epoxy primer, copolymer adhesive, polyethylene outer layer) provides mechanical damage resistance during backfilling, while FBE alone suits less abrasive environments at lower applied cost.
Hidden Costs of Procuring LSAW Pipe Without Verified Documentation
Accepting a lower unit price from an unverified supplier becomes expensive when the first hydrostatic test reveals laminar defects in the weld seam, or when port customs officials reject a shipment lacking EN 10204 3.2 inspection certificates. Material substitution — receiving Q235 plate when P265GH was specified — passes visual inspection but fails during field welding, producing hydrogen-induced cracking in heat-affected zones. [NEED_CITE: consequences of steel grade substitution in pressure pipe applications] Non-standard negative tolerance beyond EN 10217 limits reduces the actual pressure rating below design calculations, forcing either costly re-procurement or engineering re-assessment with the project owner. Missing heat-number traceability means individual pipe segments cannot be linked to their production batch, invalidating the entire quality documentation package required for pipeline commissioning.
Why Project Buyers Source LSAW Pipe From Our Jinan Facility
Three dedicated LSAW production lines operating simultaneously deliver monthly output exceeding 20,000 tons, with standard EN 10217 and API 5L sizes held in ready stock for urgent dispatch. Every heat of steel is tested in our in-house metallurgical laboratory before pipe forming, and original mill test certificates documenting chemical composition and mechanical properties accompany each shipment. Lloyd’s CE certification covering EN 10210 and EN 10219, combined with ISO 9001:2015 registration, satisfies EU project compliance requirements without additional third-party factory audits. For buyers consolidating multiple product categories — combining LSAW pipe with H-beam, channel, and plate in a single container — our export team optimizes loading plans to maximize payload while protecting 3PE and FBE coatings from transit damage. SGS and BV third-party inspections are arranged on request, with reports issued before vessel departure.
Documentation & Compliance
- Mill test certificate per EN 10204 3.1 documenting P235TR1 / P265GH chemical composition, yield strength, and tensile properties for each heat number
- CE certificate under EN 10210 and EN 10219 with Factory Production Control audit report for EU customs clearance
- ISO 9001:2015 quality management system certificate covering the full LSAW production process from plate edge preparation to final hydrostatic testing
- SGS or BV third-party inspection report verifying wall thickness, coating adhesion, and weld-seam radiographic examination results
- Heat-number traceability linking each pipe segment to its steelmaking batch, plate rolling record, and welding parameters
- Export documentation package including commercial invoice, packing list, bill of lading, and certificate of origin for destination customs
Packaging, Loading & Delivery
- LSAW pipes bundled with galvanized steel strips at intervals matching the 6m and 12m standard lengths, with hardwood cradles preventing 3PE coating abrasion during ocean transit
- Beveled-end pipe sections fitted with plastic protectors to preserve welding-preparation geometry and prevent moisture ingress during storage
- Container loading plans optimized for 219–610mm OD pipes in 40ft open-top or flat-rack containers, with inner-diameter spacers maintaining bundle stability
- FBE-coated pipes wrapped in woven polyethylene sleeves to prevent electrostatic coating damage from steel-to-steel contact during handling
- Heat number, steel grade, and OD/WT stenciled on each pipe end in weather-resistant paint for site identification and traceability verification
- FOB Qingdao, CIF destination port, or door-to-door delivery arranged with project-schedule-aligned vessel booking
Securing Your LSAW Pipe Procurement With Verified Specifications
Submit your project requirements — including OD, wall thickness, steel grade, applicable standard, quantity, and destination port — via email or WhatsApp to receive a competitive bulk quotation within 12 hours. Our technical team will confirm dimensional compliance with EN 10217 or API 5L, provide sample mill test certificates from recent production runs, and coordinate SGS/BV third-party inspection scheduling if required by your project specification.
Request LSAW Pipe Quotation With Mill Test Certificates
Send your specifications, steel grade, and destination port to receive factory-direct pricing and original mill test certificates within 12 hours.
Contact: Shandong Xin Jiyuan Special Steel Tube Co., Ltd
Tel: +86 531 8573 6315
Mobile/WhatsApp/WeChat: +86 188 5315 7756
Email: admin@sdxinjiyuan.com
Address: No.11889, Jingshi West Road, Lulian Group, Jinan City, Shandong Province, China
Frequently Asked Questions
Q: How do EN 10217, API 5L, and ASTM A252 standards differ for LSAW pipe selection?
A: EN 10217 covers pressure-purpose welded steel pipes with grades P195–P265 for fluid transport and elevated-temperature service. API 5L addresses line pipe for oil and gas transmission with PSL1 (standard) and PSL2 (enhanced testing) quality levels. ASTM A252 specifies welded and seamless steel pipe piles for structural foundation applications. Each standard defines different chemical composition limits, mechanical property requirements, and testing frequencies — we supply all three with full documentation.
Q: What is the difference between 3PE and FBE coating for buried LSAW pipelines?
A: 3PE coating consists of three layers — fusion-bonded epoxy primer, copolymer adhesive, and extruded polyethylene outer layer — providing superior mechanical damage resistance during backfilling and long-term cathodic dislocation protection. FBE (fusion-bonded epoxy) is a single-layer coating suitable for less abrasive soil conditions, offering excellent corrosion resistance at lower applied cost. The choice depends on soil aggressiveness, installation method, and design service life.
Q: What quality documentation accompanies each LSAW pipe shipment?
A: Every batch ships with original mill test certificates per EN 10204 3.1 documenting chemical composition and mechanical properties, linked to individual heat numbers for full traceability. CE certification under EN 10210/EN 10219 and ISO 9001:2015 certificates are available for EU project compliance. SGS or BV third-party inspection reports can be arranged before shipment to verify wall thickness, coating quality, and weld-seam integrity.
Q: Can you produce non-standard OD and wall thickness combinations outside your listed range?
A: Yes, our LSAW production lines accommodate custom OD and wall thickness combinations within the 219–3000mm and 5.2–60mm ranges. Non-standard sizes and lengths require production scheduling, with typical lead times confirmed after technical review. Trial orders from 1 ton are accepted for specification verification before full-volume procurement.
Q: How does theoretical weight invoicing work with ±1% wall thickness tolerance?
A: Pipes are invoiced by theoretical weight calculated from nominal OD, nominal wall thickness, and length using standard steel density, regardless of actual measured weight within the ±1% tolerance band. This provides cost predictability for project budgeting. Actual wall thickness measurements are documented in the mill test certificate and verified during third-party inspection if requested.
