
Large Diameter Steel Pipe Supplier for LSAW, SSAW & Coated Pipe
Large diameter steel pipe manufacturer supplying LSAW, SSAW and coated steel pipe for oil & gas, water transmission and infrastructure projects. API 5L and custom sizes available.
High-frequency welded for superior strength and dimensional accuracy. Ideal for oil, gas, water, and structural applications. Factory direct, specializing in bulk international shipment.
JS FITTINGS offers high-frequency Electric Resistance Welded (ERW) carbon steel pipes for global infrastructure, oil, gas, and fluid transmission. We specialize in bulk export, providing certified reliability for professional distributors and project contractors.
| Parameter | Standard Options |
|---|---|
| Outer Diameter (OD) | 1/2″ – 24″ (21.3mm – 610mm) |
| Wall Thickness (WT) | SCH 10, SCH 20, SCH 40, SCH 80, SCH STD (Up to 12.7mm) |
| Material Grades | API 5L (GR.B, X42, X52, X60), ASTM A53 Grade B, EN 10219 S235JR/S355JR |
| Pipe Length | SRL (6m), DRL (12m), or customized fixed lengths up to 18m |
| Surface Coating | Black Painting, Anti-corrosion Oil, Hot-dipped Galvanized, 3PE, FBE Coating |
Precision Manufacturing
Our ERW pipes utilize high-frequency induction currents to produce a clean, durable longitudinal weld seam, ensuring structural integrity under high pressure.
Rigorous Quality Control
Every pipe undergoes online Ultrasonic Testing (UT), Hydrostatic Testing, and chemical analysis to meet international MTC EN 10204 3.1 standards.
Global Logistics & Bulk Export
Optimized for 20ft/40ft container and break-bulk shipping. We handle large-scale orders for energy projects in the Middle East, SE Asia, and the Americas.
Yes. Modern ERW pipes manufactured under API 5L PSL1/PSL2 standards are highly reliable for midstream oil and gas transport. They offer uniform wall thickness and excellent dimensional tolerances.
As a bulk export factory, our minimum order quantity is typically 10 to 25 tons (one full container), allowing us to provide the most competitive factory-direct pricing for our B2B clients.
Absolutely. We welcome and facilitate third-party inspections to verify material quality, coating thickness, and quantity before dispatch to ensure 100% compliance with your project specs.
Inquiry for Project Pricing
* Dedicated to B2B Distributors & Project Contractors | Minimum Order: 10+ Tons
When you choose to contact us, you will love our service
No matter you have rich experience of importing or new in this industry, our team will try the best to make your purchase of steel pipes fast and efficient.
All staff are7x 24 hours online and all your inquiries will be replied within 2 hours.
common size of steel pipes are in stock more than 800 tons, CIF orders will book stand-on vessel first.
Test report, certificates, CO and all customs clearance documents will be replied in time.

Large diameter steel pipe manufacturer supplying LSAW, SSAW and coated steel pipe for oil & gas, water transmission and infrastructure projects. API 5L and custom sizes available.

JS FITTINGS supplied 6 containers of large-diameter API 5L LSAW steel pipe to a Nigerian customer for a natural gas project, following factory and final product inspections.

LSAW steel pipe specifications, API 5L standards, sizes, grades, testing requirements and how to choose a reliable LSAW pipe supplier.

Seamless vs ERW steel pipe explained for industrial buyers. Compare manufacturing, pressure, oil & gas applications, cost, standards and selection criteria.
We will contact you within 2 hours, please pay attention to the email with the suffix “@jsfittings.com” or “@chinajsgj.com”.