Home > Seamless Tubes > ASTM A213 / ASME SA213
Inox Steel India supplies a complete range of ASTM A213 / ASME SA213 Seamless Tubes in both ferritic alloy steel grades (T2, T5, T9, T11, T22, T91) and austenitic stainless steel grades (TP304/L, TP316/L). Manufactured for high-pressure, high-temperature applications, these tubes are primarily used in boilers, superheaters, heat-exchangers, refinery furnaces, petrochemical heaters, process steam systems, and power generation units.
Alloy steel grades such as T11, T22, and T91 provide exceptional creep strength, oxidation resistance, and stability under prolonged high-temperature exposure, making them suitable for power plant operation, thermal processing, and steam generation. Stainless steel variants TP304/L and TP316/L deliver reliable corrosion resistance, thermal stability, and clean fluid transfer, ideal for heat exchangers, chemical systems, condensers, and high-purity applications.
✔ Grades Offered
These tubes are produced using precision mandrel piercing, hot finishing, cold drawing, solution annealing, normalizing & tempering operations to achieve the mechanical strength and dimensional tolerances demanded by boiler & superheater service.
Our ASTM A213 tubes are trusted by:
Inox Steel India supplies A213 / SA213 tubes to clients across India, the Middle East, Africa, South East Asia, Europe, and the USA — ensuring full certification, timely delivery, and engineering support.
| Parameter | ASTM A213 / ASME SA213 Seamless Tubes |
|---|---|
| Standard | ASTM A213 / ASME SA213 — Seamless Ferritic & Austenitic Alloy-Steel and Stainless-Steel Boiler, Superheater & Heat-Exchanger Tubes |
| Grades (Alloy Steel) | T2, T5, T9, T11, T22, T91 |
| Grades (Stainless Steel) | TP304, TP304L, TP316, TP316L |
| Material Class | Alloy Steel • Stainless Steel |
| Manufacturing Process | Seamless Hot-Finished • Cold Drawn • Solution Annealed |
| Size Range (OD) | 6 mm to 127 mm |
| Thickness (WT) | 0.5 mm to 16 mm |
| Length Options | 6m • 12m • Custom Cut • U-Bent |
| Mechanical Properties | Vary by grade — Tensile: 415–620 MPa • Yield: 205–400 MPa |
| Temperature Resistance | Excellent high-temperature strength (T11–T91) |
| Corrosion Resistance | SS grades offer strong oxidation & corrosion resistance |
| Heat Treatment | Normalized • Tempered • Solution Annealed • Stress Relieved |
| Surface Finish | Annealed & Pickled • Polished • OD/ID Cleaned |
| Dimensional Tolerances | Strict OD/WT tolerances per ASTM A213 |
| End Finish | Plain Ends • Beveled Ends • Threaded (Optional) |
| Mandatory Testing | Hydrostatic • Eddy Current • Hardness • Tension Test |
| Special Testing | Flattening • Flaring • Microstructure • Impact Test • IGC |
| Documentation | MTC EN 10204 3.1 • Chemical/Mechanical Test • NDT Reports |
| Key Grade Benefits | T11–T91: High temp strength & creep resistance • 304/316: High corrosion resistance |
| Typical Applications | Boilers • Superheaters • Heat Exchangers • Refinery Units • Chemical Plants • Power Plants |
ASTM A213 / SA213 seamless tubes are specially designed for high-temperature, high-pressure and continuous operation. Alloy steel grades (T11, T22, T91) offer creep strength and oxidation resistance at elevated temperatures, while stainless steel grades (TP304/L & TP316/L) deliver outstanding corrosion resistance in heat-exchanger and process environments.
🔹 1. Power Plants & Thermal Boilers
These tubes are the backbone of superheated steam systems.
Applications:
Best Grades: T11 • T22 • T91
🔹 2. Petrochemical & Refinery Heaters
High-temperature stability + creep resistance = ideal for fired heaters.
Used For:
Recommended: T5 • T9 • T22
🔹 3. Heat Exchangers & Condensers
Corrosion-resistant stainless steel grades ensure clean fluid transfer.
Applications:
Best Grades: TP304/L • TP316/L
🔹 4. Chemical & Process Plants
Used where corrosive fluids meet elevated temperature or steam.
Applications:
Recommended Grades: TP316L • T11 • T22
🔹 5. Oil & Gas / Fertilizer Plants
High-pressure operations demand alloy steel resistance.
Used For:
Best Grades: T22 • T91
| Application | Recommended Grade | Why |
|---|---|---|
| High-temperature steam service | T11 / T22 / T91 | Outstanding creep strength & stability |
| Refinery heaters / furnaces | T5 / T9 | Oxidation-resistant at very high temperatures |
| Heat exchangers & chemical plants | TP304/304L | Clean fluid handling + corrosion resistance |
| Marine / chloride-rich heat exchangers | TP316/316L | Best chloride resistance among A213 SS grades |
| Continuous high-pressure service | T22 / T91 | High strength and pressure tolerance |
| Grade Type | OD Range | WT Range | Typical Use |
|---|---|---|---|
| Alloy Steel (T11, T22, T91) | 10 – 127 mm | 1 – 16 mm | Boilers, superheaters |
| Stainless Steel (TP304/L, 316/L) | 6 – 114 mm | 0.8 – 10 mm | Heat exchangers, chemical plants |
| U-Bent Tubes (SS & Alloy) | Custom | Custom | Heat exchanger bundles |
(Custom OD/WT & cut lengths available.)
(Varies by grade, OD, WT & heat treatment)
| Grade | Price Range (₹/kg) | Notes |
|---|---|---|
| TP304 / TP304L | ₹380 – ₹550 | Heat exchanger quality |
| TP316 / TP316L | ₹450 – ₹650 | Higher corrosion resistance |
| T11 / T22 | ₹250 – ₹450 | Most used boiler grades |
| T91 | ₹600 – ₹950 | High-temp creep-resistant alloy |
Standard Tests Required by ASTM A213 / SA213
Special Tests (Based on Application)
Documentation Provided
Inox Steel India is a trusted supplier of high-temperature alloy steel and stainless steel seamless tubes conforming to ASTM A213 / ASME SA213. Our tubes are engineered for demanding boiler, superheater, and heat exchanger applications where thermal stability, creep resistance and corrosion performance are critical.
✔ Why Our A213 / SA213 Seamless Tubes Stand Out
Our commitment to quality ensures long service life under continuous high-pressure, high-temperature, and corrosive operating conditions.
| Industry | Applications |
|---|---|
| Power Generation | Boiler tubes, superheaters, economizers |
| Oil & Gas / Refinery | Furnace tubes, reformer coils |
| Petrochemical Plants | Reactors, heaters, steam lines |
| Chemical & Fertilizer Units | High-temp chemical processing |
| Heat Exchanger Manufacturers | Shell & tube exchangers, condensers |
| Marine & Desalination | SS heat exchanger tubing |
| Pharma & Food Plants | TP316L corrosion-resistant process tubes |
These tubes are essential wherever long-term structural stability at elevated temperatures is required.
To protect tube integrity during global shipping, our packing is engineered for heavy industrial transport.
Export Packaging Includes:
Major Export Countries:
UAE • Saudi Arabia • Oman • Qatar • Kuwait
Turkey • Singapore • Malaysia
South Africa • Nigeria • Egypt
USA • Europe • Brazil
We assist with:
✔ Grade recommendation for boilers & heat exchangers
✔ Comparison: T11 vs T22 vs T91
✔ TP304/316 selection for chemical & marine systems
✔ U-bent tube technical details
✔ Fast project-based dispatch
52-A, Mulji Thackersi Bldg, Islampura Street, Shop No. 10, Near Alankar Cinema, Mumbai – 400 004
steel@inoxsteelindia.in
+91 9930796690
Yes — they offer excellent corrosion resistance and thermal stability for process cooling and heating applications. Yes, U-bent tubes are supplied for heat exchanger bundles with full solution annealing after bending. MTC 3.1, Chemical/Mechanical tests, NDT/UT, heat treatment chart, PMI test. 6m & 12m standard lengths, with custom lengths available on request. Are SS grades TP304/TP316 suitable for heat exchangers?
Do you supply U-bent tubes?
What documentation is provided?
What is the typical length available?
Inox Steel India supplies ASTM A213 / ASME SA213 Seamless Tubes in alloy grades T11, T22, T91 and stainless grades TP304/304L, TP316/316L. Ideal for boilers, superheaters, heat exchangers and refinery applications. High-temperature strength & corrosion resistance with MTC 3.1.