Industrial High-Temperature Service Standard
Grade: ASTM A106 / ASME SA106 Grade B (Gr. C available)
Size Range: 1/2″ to 36″ (DN15 – DN900) or custom
Schedules: SCH 40, SCH 80, SCH 160, SCH XXS, STD
End Finish: Bevelled Ends, Plain Ends, Threaded & Coupled
Key Advantage: Exceptional pressure resistance for refineries and power plants.
✅ Factory Direct Price ✅ Quality Assurance
✅ Certified Quality ✅ Rapid Delivery
ASTM A106 (also covered in ASME SA106) is the standard specification for seamless carbon steel pipe for high-temperature service. As a professional manufacturer, JS FITTINGS provides ASTM A106 Grade B Seamless carbon steel pipes that offer exceptional thermal resistance and pressure-bearing capacity, making them the preferred choice for refineries, power plants, and industrial boilers.
Our ASTM A106 seamless steel pipes are strictly manufactured to meet or exceed the following requirements:
| Grade | Carbon (max) | Manganese | Phosphorus (max) | Sulfur (max) | Silicon (min) |
|---|---|---|---|---|---|
| ASTM A106 Grade B | 0.30% | 0.29–1.06% | 0.035% | 0.035% | 0.10% |
| Property | ASTM A106 Grade B Value |
|---|---|
| Tensile Strength (min) | 60,000 psi / 415 MPa |
| Yield Strength (min) | 35,000 psi / 240 MPa |
| Elongation | Standard as per wall thickness |
ASTM A106 and ASME SA106 seamless pressure pipe is commonly used in oil and gas refineries, power plants, petrochemical plants, boilers, and ships where piping must transport fluids and gases at higher temperatures and pressure levels.
Standard: ASTM A53, A106, API 5L, A179, A192, A210, A519, DIN2391, 2448/1629/1630, etc.
Material: Gr. A, Gr. B, ST52, etc.
Size: 10.3-610 mm OD, 1.0-40 mm WT, 12000mm longest length.
Pipe Ends: Square ends (straight/saw/torch cut) or Beveled for welding.
Surface: Oiled, Galvanized, Black, Bare, Anti-rust oil, 3LPE, FBE Coating.
Tests: Chemical, Mechanical, Flattening, Bending, Hardness, Impact, Hydrostatic, NDT (ET/UT).
Client: EPC Contractor for a Major Energy Plant
The Challenge: Strict 40-day delivery window and 100% Ultrasonic Testing (UT) for maintenance shutdown.
Our Solution: Prioritized production line, implemented in-house UT, and provided 3LPE coating.
Result: Delivered 5 days ahead of schedule, passed all SGS inspections.
Q1: Difference between ASTM A106 and A53?
A: A106 is for high-temp and always seamless. A53 is for general use (Seamless or ERW).
Q2: Can A106 Gr.B pipes be bent?
A: Yes, Grade B is suitable for bending and flanging under engineering standards.
Q3: What schedules do you provide?
A: Full range including SCH 40, 80, 160, STD, and XS.
Q4: Do you support third-party inspections?
A: Yes, we welcome SGS, BV, TUV, or any appointed agency.
| Grade | Application | Temp Range | Key Features |
|---|---|---|---|
| A106 | Boilers, refineries | Up to 750°F | High temp & pressure resistance |
| A53 | Water, steam, air lines | Up to 550°F | Versatile, economical |
| API 5L | Oil & gas pipelines | Varies | Seamless flow, corrosion resistance |
| A333 | Low-temp service | -50°F to +650°F | Toughness in sub-zero conditions |
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.
Learn about FBE vs. 3LPE coating technologies, pipe grades (ASTM A53/API 5L), and how to select the right protection for oil, gas, and infrastructure projects.
Expert supplier of API 5L PSL2 line pipes with 3LPE coating. Delivering high-performance piping for oil and gas projects worldwide. See our latest Middle East success story.
Large Diameter ASTM A106 Gr.B Pipe Manufacturer | Oil & Gas Solutions
Read our comprehensive FAQ guide covering standards (API 5L, ASTM), applications, and comparisons to help you choose the best spiral welded pipe for your project.
We will contact you within 2 hours, please pay attention to the email with the suffix “@jsfittings.com” or “@chinajsgj.com”.
