Large Diameter ASTM A106 Gr.B Carbon Steel Pipe for the Oil & Gas Industry
Large Diameter ASTM A106 Gr.B Pipe Manufacturer | Oil & Gas Solutions
Main Standards: ASTM A106, A53, API 5L PSL1/PSL2, EN 10219
Grade Range: Grade B up to X70 High-Yield
OD Range: 1/2″ – 36″ (DN15 – DN900)
Thickness: Up to 60mm (SCH 160 / XXS)
Testing: 100% Hydrostatic, Ultrasonic (UT), and Visual inspection.
✅ Wholesale Factory Pricing
✅30,000-ton annual supply for large-scale projects.
✅ Serving 50+ countries
✅ Full MTC 3.1 traceability & third-party inspection.
Seamless carbon steel pipe is formed by piercing a solid steel billet to create a hollow cylinder without a weld or seam. This construction eliminates weak points, allowing the pipe to withstand extreme internal pressure, high temperatures, and mechanical stress.
Core Specifications & Grades
JS FITTINGS supplies high-integrity SMLS pipes that meet global standards including ASTM, API, DIN, and EN, ensuring dimensional precision and superior mechanical reliability for critical energy and infrastructure projects.
| Feature | JS FITTINGS Supply Scope |
|---|---|
| Manufacturing Process | Hot Rolled (OD 2″ – 36″) | Cold Drawn (OD 1/2″ – 2″) |
| Global Standards | ASTM A106, A53, API 5L, ASTM A333, DIN 1629, DIN 2448, EN 10210/10219 |
| Material Grades | Gr.B, X42, X52, X60, X65, X70 (PSL1 & PSL2), ST37, ST52, S355J2H |
| Size Range | OD: 21.3mm – 914.4mm | WT: 2.11mm – 60mm |
| Surface Options | Bare, Oiled, Black Varnish, Hot-dip Galvanized, 3LPE, FBE Coating |
To ensure 100% compliance with international standards, JS FITTINGS implements a multi-stage testing protocol:
JS FITTINGS carbon SMLS pipes provide maximum safety for high-temperature distillates, eliminating weld-seam leaks in volatile environments.
Critical for superheated steam lines in thermal plants, our pipes offer exceptional resistance to thermal fatigue and creep.
With uniform wall thickness and high yield strength, our pipes serve as reliable structural members for high-load infrastructure projects.
The Challenge: A major Middle East project required high-yield carbon pipes with NDT inspection and a strict 45-day delivery window.
Our Solution: JS FITTINGS prioritized production, provided in-house 3LPE coating, and managed logistics to ensure 100% on-time delivery.
Outcome: Successfully passed SGS on-site inspection; client confirmed 20% reduction in installation time due to dimensional precision.
We export to 40+ countries (USA, UAE, KSA, etc.), offering wholesale pricing with direct manufacturer warranty.
30,000-ton annual production ensures stable supply for large-scale infrastructure and emergency maintenance.
Dual-certified to API 5L & EN 10219. Mill Test Certificates (MTC) 3.1 provided with every batch.
Q: What is the difference between Hot-Rolled and Cold-Drawn seamless pipe?
A: Hot-rolled pipes are ideal for large diameters and heavy walls, offering high production efficiency. Cold-drawn pipes provide superior surface finish and higher dimensional accuracy, usually for smaller diameters.
Q: Does JS FITTINGS support third-party inspection (SGS/BV)?
A: Yes, we welcome and support inspections by SGS, Bureau Veritas, TUV, and other global agencies to ensure project compliance.
Q: Which carbon steel grade is best for low-temperature environments?
A: For low-temperature service down to -45°C, ASTM A333 Grade 6 is the industry standard due to its required Charpy V-Notch impact toughness.
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 ASTM A106 Gr.B Pipe Manufacturer | Oil & Gas Solutions
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We will contact you within 2 hours, please pay attention to the email with the suffix “@jsfittings.com” or “@chinajsgj.com”.
