Description
Factory-direct SSAW Spiral Welded Steel Pipe — 12-meter S355JR pipes shipped under EN10219 with in-house lab testing and third-party SGS verification before loading.
Technical Specifications
| Parameter | Value |
|---|---|
| Designation | S355JR SSAW Spiral Welded Steel Pipe |
| Product Type | Round Steel Pipe / Circular Hollow Section |
| Steel Grade | S355JR, ASTM A572 Grade 50, Q355B, Q355D |
| Standard | EN10219, ASTM A572 |
| Section Shape | Round |
| Outer Diameter | OD 1000mm |
| Wall Thickness | 10–30mm |
| Length | 12m |
| Technique | SSAW (Spiral Submerged Arc Welded) |
| Surface Treatment | Cold Rolled |
| Tolerance | ±10% |
| Ends | Plain |
| Oiled or Non-oiled | Non-oiled |
| Processing Service | Welding, Punching, Cutting |
| Invoicing | By Theoretical Weight |
| Origin | Shandong, China |
Application Suitability
| Industry | Typical Applications |
|---|---|
| Oil & Gas Infrastructure | Fluid transmission pipelines, gas distribution networks, crude oil transport lines |
| Industrial Construction | Structural frames for warehouses, factory building columns, heavy equipment support bases |
| Hydraulic Engineering | Water intake and discharge conduits, hydraulic system piping for pump stations |
| Municipal Engineering | Urban water supply mains, drainage and sewage collection systems |
Where Wall-Thickness Tolerance Decides Project Acceptance on Large-Diameter SSAW Pipe
On OD1000mm SSAW spiral welded steel pipe, a ±10% wall thickness deviation translates directly into structural load capacity variance and theoretical weight invoicing accuracy.
Global EPC contractors sourcing large-diameter SSAW Spiral Welded Steel Pipe for fluid transmission or structural applications frequently encounter negative tolerance creep — where actual wall thickness falls below the minimum acceptable threshold, triggering third-party inspection failures at destination ports. When material certificates do not match physical measurements, customs clearance stalls and project timelines collapse. [NEED_CITE: EN 10219 dimensional tolerance requirements for cold-formed welded structural hollow sections]
How OD1000mm SSAW Pipe Meets Structural Load Requirements for Pipeline and Frame Applications
The 10–30mm wall thickness range on this SSAW Spiral Welded Steel Pipe provides sufficient load-bearing capacity for both pressurized fluid transport and structural column applications. The spiral submerged arc welding technique produces continuous helical seams that distribute stress evenly across the pipe circumference, making OD1000mm sections suitable for spans requiring high moment resistance. S355JR steel grade delivers reliable performance in temperate climates, while Q355D extends service capability to low-temperature environments where impact toughness becomes critical.
Engineering Compliance and Certification Pathways for International Procurement
Structural applications governed by EN 1993 require steel grades meeting EN10219 dimensional and mechanical criteria — S355JR conforms directly to this standard for cold-formed welded hollow sections. For North American projects specifying ASTM A572 Grade 50, equivalent chemical composition and mechanical properties must be documented through mill test certificates traceable to heat numbers. CE certification under EN10219 enables customs clearance across European Union member states, while SGS or BV third-party inspection reports satisfy project owner requirements for independent quality verification. [NEED_CITE: steel grade equivalence between EN10219 S355JR and ASTM A572 Grade 50]
Steel Grade Selection and SSAW Welding Process Fundamentals
S355JR belongs to the European non-alloy structural steel series, where the “355” designation indicates minimum yield strength at 16mm thickness — higher than S275 but below S420 grades used in specialized heavy-load applications. The “JR” suffix specifies room-temperature impact testing at 27 Joules, distinguishing it from J0, J2, and K2 variants requiring sub-zero impact verification. SSAW Spiral Welded Steel Pipe manufacturing uses submerged arc welding along a helical seam, enabling production of large diameters (OD1000mm) from relatively narrow steel coil widths — a cost advantage over longitudinal welded or seamless alternatives at this size range. Cold rolled surface treatment provides smoother finish compared to hot rolled, beneficial for applications requiring painting or coating adhesion. The ±10% wall thickness tolerance aligns with EN10219 standard allowances, though project specifications may require tighter controls negotiated at order placement. [NEED_CITE: SSAW versus LSAW manufacturing process comparison for large-diameter pipe]
Hidden Costs of Procuring Non-Compliant Large-Diameter Spiral Welded Pipe
Selecting SSAW Spiral Welded Steel Pipe based solely on unit price without verifying mill test certificate authenticity or wall thickness compliance creates downstream liabilities. Material arriving at destination with negative tolerance exceeding ±10% fails EN10219 acceptance criteria, forcing either costly rejection and replacement or engineering reassessment of structural adequacy. Missing CE documentation blocks EU customs clearance, generating demurrage charges and project delays. Unverified steel grade claims — where S355JR is invoiced but actual chemistry matches lower-grade S235 — compromise structural safety margins designed into engineering calculations. [NEED_CITE: consequences of steel material non-compliance in structural engineering projects]
Why Procure S355JR SSAW Pipe from Shandong Xin Jiyuan
Every SSAW Spiral Welded Steel Pipe leaving our facility undergoes testing in our in-house physical and chemical laboratory — ultrasonic weld inspection, wall thickness measurement, and chemical composition analysis occur before material release. We manufacture OD1000mm pipes under EN10219 and ASTM A572 standards with full traceability from steel coil heat number to finished pipe identification. Our facility holds CE certification for EN10210/EN10219 products, ISO 9001:2015 quality management registration, and Singapore FPC approval — documentation packages that satisfy customs and project owner requirements across 50+ export destinations. Custom cutting, punching, and welding services accommodate project-specific fabrication needs, reducing on-site processing time. Professional loading plans optimize container utilization for 12-meter lengths, minimizing freight costs per unit.
Documentation & Compliance
- Mill test certificate documenting S355JR chemical composition and mechanical properties per EN10219, traceable to heat number
- CE certificate confirming EN10219 compliance for structural hollow sections exported to European Union markets
- ISO 9001:2015 quality management system certificate covering manufacturing and inspection processes
- SGS or BV third-party inspection report available upon request for independent verification of dimensions and weld quality
- Material traceability documentation linking each pipe to steel coil heat number and production batch
- Customs documentation package including packing list, bill of lading, and certificate of origin
Packaging, Loading & Delivery
- S355JR SSAW pipes bundled with steel strips at intervals preventing bundle separation during ocean transit, with edge protectors preserving cold rolled surface finish
- Non-oiled surface condition requires careful stacking to prevent moisture contact; containers inspected for dryness before loading
- 12-meter fixed length optimized for 40-foot open-top or flat-rack container configurations, with loading plans maximizing payload while respecting road transport weight limits at destination
- Pipe ends protected with plastic caps preventing debris ingress and edge damage during handling
- Heat number and steel grade marked on each pipe surface for site identification and traceability verification
- FOB, CIF, and DDP shipping terms available with real-time tracking from Shandong port to destination
Initiate Your SSAW Pipe Procurement with Technical Documentation
Submit your project specifications including outer diameter, wall thickness, steel grade preference, quantity, and destination port to receive detailed quotation with mill test certificate sample and delivery timeline. Our technical team reviews requirements against EN10219 and ASTM A572 standards, confirming compliance before contract execution. Custom fabrication requests including cutting to non-standard lengths or end preparation receive engineering assessment within typical response timeframes.
Request Quotation with Material Certification
Provide OD1000mm SSAW Spiral Welded Steel Pipe specifications and project requirements to receive pricing with EN10219 mill test documentation.
Shandong Xin Jiyuan Special Steel Tube Co., Ltd
Tel: +86 531 8573 6315
Mobile/WhatsApp/WeChat: +86 188 5315 7756
Email: admin@sdxjysteel.com
Website: www.sdxjysteel.com
Frequently Asked Questions
Q: Can S355JR SSAW Spiral Welded Steel Pipe be substituted with ASTM A572 Grade 50 for North American projects?
A: S355JR and ASTM A572 Grade 50 share similar yield strength levels and chemical composition ranges, making them functionally equivalent for many structural applications. However, formal equivalence requires verification of specific mechanical properties and impact testing requirements. We provide mill test certificates documenting actual chemistry and test results, enabling your engineering team to confirm compliance with project specifications.
Q: What third-party inspection options are available for SSAW Spiral Welded Steel Pipe orders?
A: SGS and BV third-party inspection services are available for dimensional verification, weld quality assessment, and material testing witness. Inspection occurs at our facility before shipment, with reports included in the documentation package. Third-party inspection costs and scheduling are confirmed at order placement.
Q: Can OD1000mm SSAW pipes be cut to non-standard lengths for specific project requirements?
A: Custom cutting services accommodate project-specific length requirements beyond the standard 12-meter fixed length. Cutting accuracy, end preparation, and additional processing are quoted based on specifications. Lead time for custom fabrication is confirmed after order review.
Q: How is wall thickness tolerance verified for EN10219 compliance on large-diameter SSAW pipe?
A: Our in-house laboratory conducts ultrasonic thickness measurement at multiple points around the pipe circumference and along the length. Results are documented in mill test certificates with actual measurements compared against EN10219 ±10% tolerance requirements. Third-party verification through SGS or BV provides independent confirmation for projects requiring external inspection.
Q: What surface treatment options are available beyond cold rolled finish for corrosion protection?
A: While this SSAW Spiral Welded Steel Pipe is supplied with cold rolled surface treatment, additional corrosion protection including hot-dip galvanizing, 3PE coating, or epoxy painting can be applied based on project environmental conditions and service life requirements. Surface treatment specifications are confirmed during order quotation.
