Description
Factory-Direct SSAW Pipe Supply — We manufacture S235JR SSAW steel pipes in-house with full control over forming, welding, and coating, eliminating broker markups and specification guesswork.
Technical Specifications
| Parameter | Value |
|---|---|
| Designation | S235JR SSAW Steel Pipe |
| Product Type | SSAW Steel Pipe (Spiral Submerged Arc Welded) |
| Steel Grade | Q235, Q355, A36, S235JR, S355JR, SS400, API 5L (L210–L555M), ASTM A252 (GR.1/GR.2/GR.3) |
| Standard | GB/T 9711, API 5L, ISO 3183, ASTM A252, EN 10217-5, EN 10217-1, EN 10219-1/2, SY/T 5037, SY/T 5040 |
| Section Shape | Round |
| Size Range | Outer Diameter 219mm–3000mm |
| Wall Thickness | 5.2mm–30mm |
| Length | 6m / 12m (Max 32m) |
| Technique | SSAW (Spiral Submerged Arc Welded) |
| Surface Treatment | Black / 3PE / FBE / Epoxy |
| Tolerance | ±1% (dimensional) |
| Ends | Plain / Beveled |
| Application | Piling foundation, fluid transport, hydraulic engineering, bridge construction, industrial pipeline |
| MOQ | 1 Ton |
| Origin | Shandong, China |
Application Suitability
| Industry | Typical Applications |
|---|---|
| Foundation & Piling | Driven piles, bored pile casings, bridge pier support structures |
| Oil & Gas Transport | Onshore and offshore pipeline conveyance for crude oil, natural gas, and refined products |
| Hydraulic Engineering | Cofferdams, water intake and discharge conduits, flood control barriers |
| Bridge Construction | Structural support columns, pier foundations, temporary works scaffolding |
| Industrial Pipeline | Cooling water circulation, process fluid conveyance, drainage systems |
Where EN 10217 Certification Decides Customs Clearance for S235JR SSAW Steel Pipe
A missing or incorrect EN 10217 reference on the mill test certificate can hold an entire shipment at EU customs for weeks.
Procuring large-diameter spiral welded pipes for piling or infrastructure projects often exposes buyers to specification gaps — mills quote popular sizes but struggle with non-standard wall thicknesses or lengths beyond 12m. Material certification mismatches between EN, ASTM, and GB standards cause ordering errors that surface only at destination inspection. Without proper CE marking and EN 10217-5 compliance documentation, EU-bound S235JR SSAW steel pipe faces rejection at port. [NEED_CITE: EN 10217-5 requirements for submerged arc welded steel tubes]
Matching Large-Diameter SSAW Pipe to Piling and Infrastructure Demands
S235JR SSAW steel pipe in the 219mm–3000mm outer diameter range directly addresses the structural requirements of driven pile foundations and bridge substructures where high bending resistance and axial load capacity are critical. The spiral forming process allows continuous production of large diameters that straight-seam mills cannot achieve economically, while maintaining weld integrity through dual-sided submerged arc welding. For marine and buried applications, the 3PE coating system — combining fusion-bonded epoxy, adhesive copolymer, and polyethylene outer layer — provides mechanical protection against soil stress and cathodic disbondment. Our in-house physical and chemical laboratory verifies each heat against EN 10217-5 mechanical requirements before release.
Engineering Compliance and Corrosion Environment Considerations
Structural piling applications demand compliance with EN 1993-1-5 for plated structural elements and EN 10219-2 for cold-formed welded structural hollow sections when S235JR SSAW steel pipe is specified as load-bearing members. The choice between 3PE, FBE, or bare black finish depends on service environment: 3PE suits direct-buried or submerged conditions requiring cathodic protection compatibility, while FBE provides adequate protection for above-ground industrial pipelines. Steel grade selection between S235JR and higher grades like S355JR or API 5L X52 directly affects wall thickness requirements and overall foundation weight. Third-party inspection by SGS or BV confirms dimensional tolerance and weld quality before shipment, satisfying both engineering specifications and import customs requirements. [NEED_CITE: steel grade equivalence between EN 10217 and ASTM A252 standards]
Understanding SSAW Process and Steel Grade Selection
The spiral submerged arc welding process forms steel coil into a helical shape and welds both inner and outer seams simultaneously, distributing residual stress more evenly than straight-seam welding and enabling production of diameters up to 3000mm from narrower coil stock. S235JR, as a non-alloy structural steel per EN 10025-2, provides minimum 235 MPa yield strength at room temperature with guaranteed impact toughness at 20°C — sufficient for most piling and general structural applications where extreme low-temperature service is not required. For higher pressure ratings or sour service conditions, API 5L grades from L245 to L555M offer controlled tensile properties and mandatory Charpy impact testing. The ±1% dimensional tolerance on S235JR SSAW steel pipe ensures consistent fit-up for field welding and pile driving operations, reducing on-site rework.
Hidden Costs of Incorrect Material Certification
Procuring S235JR SSAW steel pipe without verified EN 10217-5 compliance or proper heat number traceability creates downstream risks that far exceed initial material cost savings. Walls below specified thickness due to uncontrolled negative tolerance reduce load-bearing capacity and trigger rejection during foundation acceptance testing. Missing CE certification or incorrect standard references on mill test certificates cause customs delays and potential return shipment costs for EU projects. Material substitution — receiving Q235B when S235JR was specified — may pass visual inspection but fails impact testing requirements, forcing costly replacement after piles are already driven. [NEED_CITE: consequences of steel grade substitution in structural piling applications]
Why Source S235JR SSAW Steel Pipe from Xin Jiyuan
We operate three dedicated SSAW production lines covering 219mm–3000mm outer diameters with wall thickness up to 30mm, producing over 2,800 specification combinations in-house rather than brokering from multiple mills. Our physical and chemical laboratory performs tensile testing, charpy impact testing, and chemical composition analysis per EN 10217-5 and API 5L requirements, issuing mill test certificates with full heat number traceability. Full international certifications including Lloyd’s CE marking per EN 10210/EN 10219, Singapore FPC, and ISO 9001:2015 registration satisfy import requirements across 50+ destination countries. Professional container loading with anti-damage measures prevents ovality and surface damage during ocean transit — a critical concern for large-diameter pipes with 3PE coating. Custom non-standard lengths up to 32m and beveled ends for field welding are available with typical production lead times rather than stock-only limitations.
Documentation & Compliance
- Mill test certificate documenting S235JR chemical composition and yield strength per EN 10217-5 with heat number traceability
- CE certificate per EN 10210/EN 10219 for EU market access and customs clearance compliance
- ISO 9001:2015 quality management system certificate covering SSAW pipe manufacturing processes
- SGS or BV third-party inspection report verifying dimensional tolerance, weld quality, and coating thickness before shipment
- Material traceability documentation linking each pipe to specific heat number and production batch
- Complete customs documentation including packing list, bill of lading, and certificate of origin
Packaging, Loading & Delivery
- S235JR SSAW steel pipe bundled with steel strips and edge protectors to prevent coating damage during ocean transit
- 3PE-coated pipes wrapped with protective film and separated by rubber pads to preserve polyethylene outer layer integrity
- Large-diameter pipes (over 1000mm OD) loaded in single-tier configuration to prevent ovality and coating crush damage
- Custom cutting to 6m, 12m, or project-specific lengths with beveled ends prepared for field welding
- Heat number and steel grade marked on each pipe end with stenciled identification for site traceability
- FOB, CIF, or DDP shipping terms available with professional container loading optimization for 20ft and 40ft containers
Request Quotation with Full Material Certification
Submit your project specifications including outer diameter, wall thickness, steel grade, surface treatment requirement, and destination port to receive detailed quotation with mill test certificate preview and production lead time confirmation. Our engineering team reviews non-standard dimensions and custom coating requirements to provide technical solutions within 12 hours.
Get Your S235JR SSAW Steel Pipe Quote with EN 10217 Certification
Contact us at admin@sdxjypipe.com or WhatsApp +86 188 5315 7756 with your specification sheet to receive pricing, mill test certificate samples, and third-party inspection arrangement options.
