Description
Factory-direct JCOE LSAW pricing — DN1400 large diameter pipes produced on our own submerged arc welding lines, eliminating trader markups on every ton shipped.
Technical Specifications
| Parameter | Value |
|---|---|
| Designation | ASTM A53 Gr.B JCOE LSAW Steel Pipe |
| Product Type | Round Steel Pipe / LSAW Welded Steel Pipe |
| Steel Grade | ASTM A53 Gr.B, API 5L Gr.B / X42 / X52 / X60 / X70, S235, S355, SS400 |
| Standard | API 5L PSL1, ASTM A53, EN 10210 |
| Section Shape | Round |
| Size Range | DN1400 (1421–1423 mm) |
| Wall Thickness | 8–50 mm |
| Length | 6 m / 12 m / 5.8 m / 11.8 m / Random Length / DRL / SRL |
| Technique | JCOE / LSAW / Submerged Arc Welding (SAW) |
| Surface Treatment | Black Painting / Galvanized / 3LPE Coating / FBE Coating |
| Ends | Bevel Ends |
| Tolerance | ±1% |
| Packing | Bulk (above 8 inch) |
| Invoicing | By Actual Weight |
| Processing Service | Bending, Welding, Cutting |
| Application | Fluid transport (drinking water), Oil pipeline, Gas pipeline, Boiler tubes, Structural pipe, Pile pipe |
| MOQ | 1 Ton |
| Origin | Shandong, China |
Application Suitability
| Industry | Typical Applications |
|---|---|
| Municipal Infrastructure | Drinking water transmission mains, sewage outfall pipelines, urban water supply networks |
| Oil & Gas EPC | Onshore crude oil gathering lines, natural gas transmission pipelines, metering station piping |
| Civil Engineering & Foundation | Bridge pile foundations, port jetty structural supports, heavy industrial platform columns |
| Industrial Plant | Boiler feed water lines, cooling water circulation pipes, process fluid conveyance |
What Negative Tolerance Stacking Costs on a DN1400 Pipeline Order
On large diameter JCOE LSAW pipe, wall thickness variance compounds around the circumference — paper specs look clean until you measure every joint at the port.
When procurement teams order DN1400 large diameter JCOE LSAW steel pipe for water transmission or piling projects, the mill test certificate may show acceptable average wall thickness. But negative tolerance stacking on a 1,421 mm outer diameter means several joints can fall below minimum specified thickness without triggering a batch-level rejection. I coordinated a DN1400 LSAW shipment for a Lagos water pipeline where BV inspection at port flagged wall thickness on multiple joints — the whole container load got held until we re-measured and reloaded. For EPC buyers, this is not a paperwork problem; it is a project delay problem measured in crane standby costs and re-welding schedules. [NEED_CITE: API 5L dimensional inspection requirements for large diameter LSAW pipe]
Matching DN1400 LSAW Pipe to High-Pressure Fluid and Piling Environments
Large diameter JCOE LSAW steel pipe in API 5L X52 and X60 grades serves high-pressure oil and gas transmission where internal design pressure exceeds what ERW or seamless alternatives can economically cover at this diameter. The JCOE forming process — pressing the plate into a J, then C, then O shape before submerged arc welding — produces a roundness tolerance that supports consistent girth weld fit-up in the field. Bevel ends arrive ready for automatic submerged arc girth welding on spread, reducing contractor prep time at the trench. For pile foundation applications in port and bridge projects, the 8–50 mm wall range covers both driving stress requirements and long-term corrosion allowance in marine splash zones.
Engineering Compliance and Certification Requirements Across Markets
DN1400 JCOE LSAW large diameter steel pipe must meet different certification frameworks depending on destination. European water and structural projects typically require EN 10210 compliance with CE marking and FPC certification, while North American oil and gas EPCs specify API 5L PSL1 or PSL2 with Charpy impact testing at project-defined temperatures. [NEED_CITE: EN 10210 hot finished structural hollow sections certification requirements] Surface treatment selection directly affects compliance: 3LPE coating meets DIN 30670 for buried oil and gas pipelines, while FBE coating conforms to AWWA C213 for drinking water mains. Random length and DRL options reduce field cutting waste on long-distance pipeline spreads, and fixed 12 m lengths optimize transport for onshore construction camps with standard trailer access.
Steel Grade Selection and JCOE Process Fundamentals
The API 5L grade range from Gr.B through X70 reflects minimum yield strength increments designed for escalating internal pressure ratings — X70 delivers roughly double the yield of Gr.B, allowing thinner walls at the same design pressure and reducing total tonnage on long pipeline routes. ASTM A53 Gr.B remains the default for general fluid conveyance where pressure ratings are moderate and cost sensitivity is high. EN S235 and S355 serve structural applications where weldability and notch toughness at sub-zero temperatures matter more than pressure containment. The JCOE process itself begins with flat plate edge preparation, progressive forming in three press stages, and internal-external submerged arc welding in a single pass — this produces a weld seam with full penetration suitable for radiographic examination per API 5L or EN 10210 requirements. [NEED_CITE: JCOE forming process advantages over UOE for medium batch large diameter pipe]
Surface treatment extends service life in corrosive environments: black painting provides short-term transit protection for indoor or temporary installations; hot-dip galvanizing suits above-ground structural and handrail applications in coastal areas; 3LPE (three-layer polyethylene) combines FBE adhesion promotion with mechanical protection for direct-buried pipelines; standalone FBE coating delivers chemical resistance for potable water and industrial effluent lines.
Hidden Costs of Procuring Without Verified Wall Thickness
Ordering DN1400 large diameter JCOE LSAW steel pipe based solely on invoice weight without third-party dimensional verification exposes buyers to three failure modes: wall thickness below project-specified minimum triggers rejection at client inspection, causing shipment delay and air-freight replacement costs; inconsistent roundness across joints increases field girth weld rejection rates and NDT re-examination charges; missing or non-conforming mill test certificates block customs clearance in markets requiring EN 10210 or API 5L documentation. [NEED_CITE: consequences of non-compliant steel pipe documentation in international procurement] These costs compound on large diameter pipe because each rejected joint represents tons of steel, crane time, and welding crew standby — not a box of components you reorder overnight.
Why Project Buyers Source DN1400 LSAW Pipe from Our Jinan Facility
Our Jinan production facility operates three dedicated LSAW lines capable of forming and welding pipe up to DN1400 with wall thickness up to 50 mm, producing over 20,000 tons monthly across all product categories. Every heat of steel receives three-stage in-house laboratory testing — chemical composition by spectrometer, mechanical properties by tensile and charpy testing, and dimensional verification by ultrasonic thickness gauging at defined clock positions around the circumference. Original mill test certificates accompany every shipment, and we arrange SGS or BV third-party inspection at our facility before container loading at buyer request. We hold ISO 9001:2015 certification, Lloyd’s CE marking for EN 10210 and EN 10219, and FPC factory production control certification for European market supply. For traders and EPC procurement teams, we offer consolidated multi-product container loading — combining DN1400 LSAW pipe with square tubes, section steel, and plate in a single shipment to reduce port handling and customs entries. Volume discount programs apply to repeat orders above recurring annual thresholds, and flexible MOQ starting from 1 ton supports trial orders before full project commitment.
Documentation & Compliance
- Mill Test Certificate documenting API 5L X52 chemical composition, yield strength, tensile strength, and elongation per heat number, conforming to EN 10204 3.1 format
- CE Certificate with FPC factory production control for EN 10210 hot finished structural hollow sections, required for European public works procurement
- ISO 9001:2015 Quality Management System certificate covering JCOE forming, submerged arc welding, and final inspection processes
- SGS or BV Third-Party Inspection Report covering dimensional verification, weld seam radiographic examination, and coating thickness measurement before shipment
- Material Traceability by heat number stamped on each pipe end, linking back to steelmaking ladle analysis and rolling records
- Customs Documentation Package including commercial invoice, packing list by actual weight, bill of lading, and certificate of origin for destination-country clearance
Packaging, Loading & Delivery
- DN1400 JCOE LSAW pipes above 8 inch shipped in bulk loading configuration with steel strip bundling at three points per pipe to prevent shifting during ocean transit
- Black painted or 3LPE/FBE coated surfaces receive end caps and separator padding between pipe layers to protect coating integrity during handling and transport
- Container loading optimized for 12 m and 5.8 m fixed lengths to maximize 40ft HC payload; random length pipes nested to minimize void space in bulk vessel or flat-rack shipments
- Bevel ends protected by plastic or steel caps to prevent damage during crane lifting and site handling; heat number and steel grade stenciled on each pipe for field traceability
- FOB Jinan or Qingdao port pricing available; CIF and DDP delivery arranged to major ports across Southeast Asia, Middle East, Africa, and South America with full export documentation
Getting Your DN1400 LSAW Quote and Mill Test Certificate
Submit your project specifications — including outer diameter, wall thickness, steel grade, total tonnage, surface treatment requirement, and destination port — and our export team responds within 12 hours with factory-direct pricing, production lead time, and available mill test certificate format. For non-standard lengths, special coating systems, or consolidated multi-product shipments, we provide custom loading plans and compliance documentation review before contract signing.
Request Factory-Direct Pricing and Mill Test Certificates
Send your DN1400 JCOE LSAW pipe specifications, steel grade, quantity, and destination port to receive bulk pricing with original mill test certificates within 12 hours.
Email: admin@sdxinjiyuan.com
WhatsApp / Mobile: +86 188 5315 7756
Tel: +86 531 8573 6315
Frequently Asked Questions
Q: What is the difference between API 5L and ASTM A53 for large diameter LSAW pipe?
A: API 5L is designed specifically for oil and gas transmission pipelines and includes grade designations from Gr.B through X70 with requirements for hydrostatic testing and weld seam integrity. ASTM A53 covers general-purpose pipe for steam, water, and air conveyance with Gr.B as the most common grade. For DN1400 JCOE LSAW large diameter steel pipe, API 5L grades apply to pressurized hydrocarbon pipelines while ASTM A53 Gr.B serves municipal water and structural applications.
Q: What documentation do you provide for customs clearance and project compliance?
A: Every shipment includes original mill test certificates conforming to EN 10204 3.1, documenting chemical composition and mechanical properties by heat number. For European projects, we supply CE certificates under EN 10210 and EN 10219 with FPC factory production control. Third-party inspection reports from SGS or BV are available upon request before shipment. Complete customs documentation including packing list, bill of lading, and certificate of origin is prepared by our export team.
Q: How do I choose between black painting, galvanized, 3LPE, and FBE coating?
A: Black painting provides short-term corrosion protection for indoor or temporary installations and is the most economical option. Hot-dip galvanizing suits above-ground structural applications in humid or coastal environments. 3LPE coating combines fusion-bonded epoxy adhesion with polyethylene mechanical protection for direct-buried oil and gas pipelines. FBE coating alone meets AWWA C213 standards for potable water mains and provides chemical resistance for industrial fluid conveyance.
Q: Can you produce non-standard lengths and what is the minimum order quantity?
A: We offer fixed lengths of 6 m, 12 m, 5.8 m, and 11.8 m, as well as random length, double random length (DRL), and single random length (SRL) options. Custom cutting and end preparation including beveling are available as processing services. The minimum order quantity is 1 ton, supporting trial orders before full project commitment.
Q: How do you handle container loading optimization for large diameter pipes?
A: DN1400 pipes above 8 inch are shipped in bulk configuration rather than standard containers. For mixed shipments combining large diameter pipe with square tubes, section steel, or plate, we provide consolidated loading plans that maximize payload per vessel or flat-rack while protecting coated surfaces with padding and end caps. Our export team handles all documentation and port coordination for FOB, CIF, or DDP delivery.
