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Inox Steel India supplies ASTM A210 / ASME SA210 Seamless Boiler Tubes in Grades A1 and C, engineered for high-pressure steam generation and elevated-temperature service. Designed for use in industrial boilers, superheaters, economizers, heat recovery units (HRU), and high-pressure piping, these tubes deliver excellent mechanical strength, wall uniformity, and long-term reliability.
ASTM A210 Gr A1 is the widely used cost-effective carbon steel grade, offering good temperature resistance and durability in steam circuits. Grade C provides higher tensile strength and improved pressure-handling capability, making it suitable for more demanding boiler environments. All tubes are manufactured using a precision-controlled seamless process that ensures consistent wall thickness and smooth internal surfaces for efficient heat transfer.
✔ Grades Supplied
These tubes undergo hot finishing, cold drawing, normalizing & stress relief operations, ensuring dimensional accuracy and stability under cyclic thermal stresses.
Our ASTM A210 / SA210 boiler tubes are used by:
Inox Steel India supplies boiler tubes across India, the Middle East, Africa, Europe and South-East Asia—backed by full testing, documentation and fast dispatch for shutdown/maintenance requirements.
| Parameter | ASTM A210 / ASME SA210 Boiler Tubes |
|---|---|
| Standard | ASTM A210 / ASME SA210 — Seamless Medium-Carbon Steel Boiler and Superheater Tubes |
| Grades Available | Grade A1 • Grade C |
| Material Class | Medium Carbon Steel |
| Manufacturing Process | Hot-Finished Seamless • Cold Drawn • Normalized • Stress Relieved |
| Size Range (OD) | 12.7 mm to 127 mm |
| Thickness (WT) | 1.5 mm to 12.5 mm |
| Length Options | 6m • 12m • Custom Cut Length • U-Bent for Boiler Coils |
| Mechanical Strength | Tensile: 330–485 MPa (A1) • 485+ MPa (C) |
| Temperature Resistance | Suitable for high-pressure steam & elevated temperatures |
| Corrosion Resistance | Moderate corrosion resistance with good oxidation stability |
| Heat Treatment | Normalized • Stress Relieved • Annealed (as applicable) |
| Surface Finish | Black • Bare • Varnish-Coated • Anti-Corrosion Oil |
| End Finish | Plain Ends • Beveled Ends • Deburred Ends |
| Dimensional Tolerances | OD/WT tolerances per ASTM A210 / SA210 |
| Mandatory Testing | Hydrostatic • Eddy Current • Tensile • Hardness • Flattening • Flaring |
| Special Testing | Ultrasonic Test • NDT • Bend Test • Microstructure |
| Documentation Provided | MTC EN 10204 3.1 • Chemical/Mechanical Reports • NDT Records |
| Key Grade Benefits | A1: Cost-effective boiler-grade carbon steel • C: Higher strength & pressure capability |
| Typical Applications | Boilers • Superheaters • Economizers • Heat Recovery Units • Pressure Piping |
ASTM A210 / SA210 boiler tubes are manufactured for high-pressure steam, elevated temperature service, and continuous thermal cycling. Their medium-carbon steel composition provides excellent mechanical strength, weldability, and resistance to scaling inside boilers.
🔹 1. Industrial & Power Boilers
These tubes are the backbone of steam generation systems.
Applications:
Recommended Grades: A1 (general) • C (high pressure)
🔹 2. Superheaters & Economizers
High thermal resistance + uniform wall thickness ensures efficient heat exchange.
Used In:
Best Grades: Grade C
🔹 3. Refinery & Petrochemical Plants
Used in fired heaters & steam-based chemical processing.
Applications:
Recommended Grades: A1 / C depending on temperature load
🔹 4. Sugar, Paper & Textile Mills
Industries relying on in-house steam generation.
Used For:
Best Grades: A1 (economy) • C (high-demand)
🔹 5. Furnace & Heat Recovery Systems
Continuous exposure to thermal cycles demands stable metallurgy.
Applications:
Preferred Grades: C
| Application | Recommended Grade | Why |
|---|---|---|
| Standard industrial boilers | Grade A1 | Most economical + reliable for general steam |
| High-pressure boilers & superheaters | Grade C | Higher tensile & yield strength |
| HRSG / Waste heat boilers | Grade C | Thermal shock resistance |
| Petrochemical heaters | A1 / C | Depending on temperature & pressure |
| Economizers | A1 | Good heat-transfer efficiency |
| Grade | OD Range | WT Range | Typical Use |
|---|---|---|---|
| A1 | 12.7 – 101 mm | 1.5 – 10 mm | Boilers, economizers |
| C | 12.7 – 127 mm | 2 – 12.5 mm | High-pressure boilers, superheaters |
| U-bent tubes | Custom | Custom | Boiler / economizer coils |
(Custom OD, WT & length options available.)
(Varies by OD, thickness & surface condition)
| Grade | Price Range (₹/kg) | Notes |
|---|---|---|
| A1 | ₹95 – ₹135 | Most used boiler tube grade |
| C | ₹110 – ₹160 | Higher strength, higher pressure capability |
Standard Tests (as per ASTM A210 / SA210)
Special Tests (On Request)
Documentation Supplied
Inox Steel India is a trusted supplier of high-quality ASTM A210 / ASME SA210 boiler tubes in Grade A1 and Grade C, known for consistent mechanical strength, reliability, and performance in steam-based systems. Our tubes are manufactured with strict adherence to dimensional tolerances, surface finish requirements, and heat-treatment procedures required for boiler, economizer, and superheater service.
✔ Why Our A210 / SA210 Boiler Tubes Are Superior
Engineers trust our A210 tubes for their stability, long service life, and ability to withstand thermal cycling inside boilers.
| Industry | Applications |
|---|---|
| Thermal & Power Plants | Water wall tubes, superheaters, boiler coils |
| Refineries & Petrochemical Plants | Process steam boilers, fired heaters |
| Sugar & Paper Mills | Industrial boilers & economizers |
| Fertilizer Plants | High-pressure steam lines |
| Chemical Industries | Re-boilers, heat recovery systems |
| Oil & Gas Plants | Utility boilers & steam circuit maintenance |
| Engineering & Fabrication | Custom boiler coil manufacturing |
These tubes are preferred wherever reliable steam generation and elevated temperature performance are critical.
Our boiler tubes are exported globally with packaging designed to protect tubes from corrosion, moisture and mechanical damage during shipping.
Export Packaging Includes:
Major Export Markets:
UAE • Saudi Arabia • Qatar • Oman • Kuwait
Turkey • Singapore • Indonesia
South Africa • Kenya • Nigeria
Europe • USA • Latin America
We help you select the right boiler tube grade, size and surface condition for your system:
✔ Grade selection: A1 vs. C
✔ Boiler tube replacement & shutdown planning
✔ Economizer and superheater coil assistance
✔ Custom lengths & U-bent tubes
✔ Project-specific pricing & immediate dispatch
52-A, Mulji Thackersi Bldg, Islampura Street, Shop No. 10, Near Alankar Cinema, Mumbai – 400 004
alloy@inoxsteelindia.in
+91 9930796690
Yes — SA210 Grade C is commonly used in superheaters due to its thermal stability. Yes, U-bent A210 tubes are available with controlled bending radius for boiler coils. Hydrostatic, Eddy Current, Flattening, Flaring, Hardness, and UT (optional). Yes — both A1 and C grades have good weldability with proper preheat control. Are these tubes suitable for superheater applications?
Do you provide U-bent boiler tubes?
What testing is required for A210 tubes?
Can these tubes be welded easily?
Inox Steel India supplies ASTM A210 / ASME SA210 Seamless Boiler Tubes in Grades A1 and C for high-pressure boilers, superheaters and economizers. Reliable high-temperature tubing with strict testing, dimensional accuracy and MTC 3.1 certification.