Description
Factory-Direct SSAW Steel Pipe API 5L Spiral Welded Carbon Steel Pipe Supplier — Raw material from our own steel mill eliminates third-party sourcing gaps, ensuring full heat-number traceability from slab to finished pipe.
Technical Specifications
| Parameter | Value |
|---|---|
| Designation | SSAW Steel Pipe API 5L Spiral Submerged Arc Welded Carbon Steel Pipeline |
| Product Type | SSAW Steel Pipe / Spiral Submerged Arc Welded Steel Pipe |
| Steel Grade | Q235, Q235B, S275, S275JR, A53, ST37 |
| Standard | API 5L, ASTM, CE, SNI, JIS, ISO 9001 |
| Section Shape | Round |
| Outer Diameter | 10mm–2500mm |
| Wall Thickness | 1mm–50mm |
| Length | 1m–18m |
| Technique | Submerged Arc Welded (Spiral) |
| Surface Treatment | Hot Rolled |
| Tolerance | ±1% |
| Ends | Plain End / Beveled End / Threaded End / Grooved End with Coupling |
| Oiled or Non-oiled | Non-oiled |
| Processing Service | Welding, Punching, Cutting, Bending |
| Invoicing | By Theoretical Weight |
| Delivery Time | Within 7 days |
| Application | Fluid Pipe, Boiler Pipe, Drill Pipe, Gas Pipe, Oil Pipe, Chemical Fertilizer Pipe, Structure Pipe, Water/Oil/Gas Transport, Low Pressure Fluid, Construction, Scaffolding |
| Origin | Shandong, China |
Application Suitability
| Industry | Typical Applications |
|---|---|
| Oil & Gas | Long-distance crude oil and natural gas transmission pipelines, gathering lines |
| Water Infrastructure | Municipal water supply mains, irrigation networks, drainage systems |
| Industrial Plant | Chemical fertilizer conveyance, process fluid piping, boiler feed lines |
| Construction & Infrastructure | Structural columns, scaffolding systems, piling supports, bridge handrails |
What Material Traceability Gaps Cost on an API 5L Pipeline Order
When fabricators source third-party steel plates, heat-number chains break — and pipeline certification fails at customs.
Overseas EPC firms ordering SSAW steel pipe API 5L spiral welded carbon steel pipe from China often discover that the mill test certificate references a plate supplier they cannot verify. Welding procedure qualification records become disconnected from base material chemistry. [NEED_CITE: material traceability requirements in API 5L pipeline construction] This is not a paperwork inconvenience — it triggers site rejection, forces costly re-testing, and delays commissioning by weeks. With our vertically integrated production line, every SSAW steel pipe API 5L spiral welded carbon steel pipe carries a continuous traceability chain from our own steel mill slab to the finished welded pipe.
How OD 10–2500mm Range Covers Pipeline and Structural Applications
The 10mm–2500mm outer diameter span of this SSAW steel pipe API 5L spiral welded carbon steel pipe allows a single procurement channel to serve both small-bore instrument lines and large-diameter transmission mains. For oil and gas transmission, API 5L-compliant grades in Q235B and S275JR provide the weldability and pressure containment needed for long-distance pipelines. In structural applications such as scaffolding and piling, the same spiral welding process delivers cost efficiency at larger diameters where seamless alternatives become prohibitively expensive. Our engineering team reviews shop drawings to recommend optimal wall thickness and end preparation for each service condition.
Engineering Compliance Across International Standards
Projects targeting EU markets require CE marking and EN compliance for structural hollow sections, while North American infrastructure demands ASTM conformance. This SSAW steel pipe API 5L spiral welded carbon steel pipe is produced under ISO 9001 quality management with certified welding procedures (WPS/PQR) that satisfy AWS and EN 1090 requirements. [NEED_CITE: EN 1090 structural steel fabrication execution classes] Hydrostatic testing and ultrasonic flaw detection are standard QC procedures for every pipe. For corrosive service environments, the hot-rolled surface condition accepts field-applied coatings such as 3PE or epoxy without additional surface preparation beyond standard blast cleaning.
Steel Grade Selection and Spiral Welding Process Fundamentals
The Q-series (Q235, Q235B) represents Chinese standard carbon structural steel with minimum yield strength designation, while S275 and S275JR follow the European EN 10025 naming convention — both families serve general structural and low-pressure fluid conveyance. A53 and ST37 map to ASTM and DIN systems respectively, covering similar mechanical property ranges for international project compatibility. The spiral submerged arc welding process forms the pipe from a continuously fed steel coil, with the helical weld seam providing uniform strength distribution along the pipe axis — particularly advantageous for large-diameter pipes above 500mm OD where longitudinal seam welding becomes technically challenging. Wall thickness from 1mm to 50mm with ±1% tolerance accommodates both thin-wall scaffolding tubes and heavy-wall pressure pipelines. [NEED_CITE: spiral welded pipe manufacturing process advantages for large diameter]
Hidden Costs of Non-Compliant Material Procurement
Purchasing SSAW steel pipe API 5L spiral welded carbon steel pipe without verified mill test certificates creates downstream risk: customs authorities in strict-import markets may detain shipments lacking proper chemical composition documentation. Negative tolerance abuse — where actual wall thickness falls below the specified minimum — reduces pressure rating and triggers rejection during hydrostatic proof testing. [NEED_CITE: API 5L dimensional tolerance and inspection requirements] Material substitution without notification means the pipe may fail to meet the specified grade’s mechanical properties, compromising structural integrity and voiding engineering liability coverage.
Why Procure SSAW Pipe from a Vertically Integrated Source
Our own steel mill produces the raw coil and plate that becomes your finished SSAW steel pipe API 5L spiral welded carbon steel pipe — no third-party material sourcing, no broken traceability chains. The fabrication workshop operates three production lines covering over 2,800 specifications, allowing us to fulfill both standard pipeline orders and custom fabrication requests (cutting, bending, punching, welding) from a single source. Every pipe undergoes hydrostatic testing and ultrasonic examination before release, with complete quality documentation packages including WPS, PQR, weld maps, and dimensional inspection reports. Third-party inspection by SGS, BV, or TUV is welcomed and coordinated on-site. For overseas buyers, we handle professional packing, oversized cargo loading plans, and export documentation — one point of accountability from raw material to site delivery.
Documentation & Compliance
- Mill Test Certificate EN10204 3.1 documenting Q235B/S275JR/A53 chemical composition and mechanical properties per API 5L and ASTM requirements
- CE certificate confirming compliance with EN 10219 for structural hollow sections where applicable to project specifications
- ISO 9001 quality management system certificate covering the integrated steel production and SSAW pipe fabrication process
- SGS, BV, or TUV third-party inspection report available for pre-shipment verification of dimensional accuracy and weld quality
- Full material traceability by heat number linking each SSAW steel pipe API 5L spiral welded carbon steel pipe to its original steel mill melt
- Complete customs documentation package: commercial invoice, packing list, bill of lading, and certificate of origin
Packaging, Loading & Delivery
- SSAW steel pipes bundled with steel strips and edge protectors to prevent surface damage to the hot-rolled finish during ocean transit
- Non-oiled surface condition requires moisture-proof wrapping with waterproof paper or plastic sheeting for long-distance sea freight
- Large-diameter pipes (above 1000mm OD) loaded with custom cradles and dunnage to prevent ovalization; internal support frames for thin-wall sections
- Length range 1m–18m accommodates standard container loading for smaller diameters and flat-rack or break-bulk for oversized pipes
- Each pipe marked with heat number, steel grade (Q235B/S275JR/A53), OD, WT, and length for site identification and traceability
- Delivery terms FOB, CIF, or DDP available; typical production lead time within 7 days for standard specifications
Start Your SSAW Pipe Procurement with Verified Documentation
Submit your project specifications — including OD, wall thickness, length, steel grade, quantity, and destination port — to receive a detailed quotation with mill test certificate samples and production timeline. Our engineering team will review your requirements and confirm end preparation, coating compatibility, and loading optimization before contract signing.
Get Your SSAW Steel Pipe API 5L Quote with Full Material Certification
Share your drawings and specifications at admin@xjystructure.com or contact us via WhatsApp at +86 188 5315 7756 for a response within 24 hours.
