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.
Standards: ASTM A106, A53, API 5L, A333, A312, A335
Material: Carbon Steel, Stainless Steel, Alloy Steel
Range: OD 10.3mm – 914.4mm (1/8″ – 36″) or custom
Testing: Hydrostatic, NDT (UT/ET/MT) Tested
Capacity: Over 50,000 tons annual production
✅ China Factory Prices ✅ Certified Quality
✅ Custom Processing ✅ Global Reach
Seamless steel pipes are cylindrical tubes formed from solid steel billets without any welded seams. Because the lack of a weld joint eliminates a potential point of failure, they are heavily used for high-pressure, high-temperature, and corrosive applications in the oil, gas, power generation, and pharmaceutical industries.
At JS FITTINGS, we engineer high-performance seamless pipes designed to withstand extreme internal pressure and harsh environments, has become a renowned seamless steel pipes supplier & exporter, both domestically and internationally.
Direct supply from our production lines ensures the most competitive wholesale prices with fast delivery times.
Global reach including UAE, Saudi Arabia, Brazil, Chile, Indonesia, Mexico, Russia, Azerbaijan,and more, meeting strict international logistics standards.
Stable supply guarantee for large-scale project needs with high-volume annual production capability.
Our pipes strictly comply with both API 5L and EN 10219 dual standards for international quality assurance.
Custom application of 3PE, FBE, and Zinc Coating based on client requests to ensure long-term anti-corrosion performance.
| Feature | Availability & Range |
|---|---|
| Outer Diameter (OD) | 1/2″ (21.3mm) – 36″ (914.4mm) or custom |
| Wall Thickness (WT) | 2.11mm – 60.00mm |
| Pipe Schedules (SCH) | SCH 10, SCH 20, STD, SCH 40, SCH 60, XS, SCH 80, SCH 100, SCH 120, SCH 160 |
| Available Standards | API 5L, ASTM A106, ASTM A53, ASTM A333, EN 10219, EN 10210 |
| Material | Carbon Steel, Stainless Steel, Alloy Steel |
The production process of seamless steel pipe can be divided into cold drawing and hot rolling.
More details messages about the difference of cold drawing and hot rolling seamless steel pipe, please click here.
Used in high-pressure transmission lines and offshore risers.
The Seamless steel pipes Advantage: Eliminates longitudinal weld failure risks in sour service and high-pressure deepwater drilling environments.
Ideal for high-temperature process piping.
The Seamless pipes Advantage: Maintains structural integrity at temperatures above 500°C, crucial for refining volatile hydrocarbons safely.
Used for building cores and stadium roofs.
The Seamless steel pipes Advantage: Provides 20% higher uniform load-bearing strength than welded pipes, allowing for more efficient structural designs.
Essential for superheated steam transportation.
The Seamless steel pipes Advantage: Superior resistance to thermal stress and internal corrosion, ensuring 24/7 reliability in power plants.
The Project: Supply of offshore transmission pipes for a deepwater oil field.
Our Solution: JS FITTINGS delivered 2,500 tons of API 5L PSL2 Seamless Pipes. Each pipe featured custom FBE anti-corrosion coating and passed 100% UT testing to withstand oceanic pressures.
Result: Zero pipeline failure during pressure tests; JS FITTINGS is now a strategic long-term supplier for the client.
Q: What are the benefits of API 5L + EN 10219 Dual Certification?
A: It ensures the pipe meets both the petroleum industry’s chemical requirements and the European structural integrity standards, making it highly versatile for global EPC projects.
Q: Can JS FITTINGS handle large-scale project supply?
A: Yes, with our 30,000-ton annual production capacity, we offer a stable and reliable supply for national-level infrastructure and energy projects.
Q: What coatings are available for corrosion protection?
A: We provide high-quality 3PE, FBE (Fusion Bonded Epoxy), and Zinc Coating (Galvanizing) based on the specific environmental conditions of your project.
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”.
