At Namo Alloy, we are prominent suppliers of high-grade Carbon Steel Seamless and ERW (Electric Resistance Welded) Pipes. Engineered for exceptional durability and strength, our carbon steel pipes are the preferred choice for oil and gas transmission, refinery systems, and structural applications. Our ASTM A106 Grade B seamless pipes are optimized for high-temperature service, while our ASTM A53 ERW variants provide cost-effective reliability for low-to-medium pressure systems. Designed to withstand rigorous industrial handling and high internal pressures, these pipes offer excellent weldability and long-term structural integrity. All our carbon steel tubular products are 100% mill-certified and compliant with international API and ASTM standards.
| Grade | C (Max) | Mn | P (Max) | S (Max) | Si (Min) | Cr (Max) | Cu (Max) | Ni (Max) |
|---|---|---|---|---|---|---|---|---|
| ASTM A106 Gr. B | 0.30 | 0.29 - 1.06 | 0.035 | 0.035 | 0.10 | 0.40 | 0.40 | 0.40 |
| ASTM A53 Gr. B | 0.30 | 1.20 | 0.05 | 0.045 | - | 0.40 | 0.40 | 0.40 |
| Grade | Tensile Strength (MPa) min. | Yield Strength (MPa) min. | Elongation (% in 50mm) min. | Application Temp | Bending / Flaring |
|---|---|---|---|---|---|
| ASTM A106 Gr. B | 415 | 240 | 30 | Up to 425°C | Excellent |
| ASTM A53 Gr. B | 415 | 240 | - | Standard Temp | Good |
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Specifications / Standards
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ASTM A106 Grade B (High-Temp Seamless) ASTM A53 Grade B (Seamless & Welded) API 5L Line Pipe (Grade B, X42, X52, X60, X65) ASTM A333 (Low Temperature Service) DIN 2448 / DIN 2458 |
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Manufacturing Condition
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Hot Finished Seamless (HFS) Cold Drawn Seamless (CDS) ERW (Electric Resistance Welded) LSAW / SSAW (Large Diameter) Normalized / Stress Relieved |
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Outer Diameter (OD) Range
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Seamless: 1/2" NB to 24" NB ERW: 1/2" NB to 24" NB LSAW/Fabricated: 24" NB to 100" NB (Available in both nominal bore and exact OD sizes) |
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Wall Thickness / Schedule
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SCH 40 / STD
SCH 80 / XS
SCH 160
SCH XXS
Thickness Range: 2.0 mm to 100.0 mm |
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Standard Lengths
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Single Random Length (approx. 6m) Double Random Length (approx. 12m) Fixed cut lengths as per project requirement |
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Surface Finishes & Coatings
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Black Varnished / Bare Galvanized (Hot Dipped) 3LPE / 3LPP Coating FBE (Fusion Bonded Epoxy) Coal Tar Epoxy |
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Pipe End Connections
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Plain End (PE) Beveled End (BE) Threaded & Coupled (T&C) Square Cut |
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Testing & Certificates
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EN 10204 3.1 MTC Hydrostatic Pressure Testing Ultrasonic / Magnetic Particle Inspection Charpy V-Notch Impact Test NACE MR0175 (H2S Sour Service) |
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Export Packaging
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Plastic End Caps / Protectors Steel Strip Bundling Lifting Slings Pre-Attached VCI Anti-Corrosion Wrap |
Namo Alloy is a leading stockist and global exporter of premium Stainless Steel, Carbon Steel, and High Nickel Alloys.
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