Seamless
Heat Exchanger Tubes
High-pressure and low-medium pressure heat exchanger tubes manufactured under IBR & PED certification — engineered for steam generation, superheaters, reheaters, economizers and water walls.
Seamless boiler pipes and tubes
OVERVIEW
Built to handle the heat.
Boiler tubes form the heart of any steam-generating system — from supercritical thermal power plants to industrial process heaters. The performance demands are unforgiving: sustained high temperatures, cyclical pressure loads and creep resistance over decades.
Our heat exchanger tubes are produced through both Hot Finished Seamless (HFS) and Cold Drawn Seamless (CDS) routes, with full traceability from billet to finished tube. Every tube is hydrostatically tested up to 5,000 PSI and inspected through Eddy Current and Ultrasonic NDT before dispatch.
✓ IBR & PED 2014/68/EU certified for boiler service
✓ Suitable up to 600°C operating temperature (P91/T91)
✓ Bright annealing furnace for optimized microstructure
✓ 100% NDT — Hydrostatic, Eddy Current, Ultrasonic
✓ Mill Test Certificate to EN 10204 3.1 / 3.2
Seamless boiler pipe application
DIMENSIONAL SPECIFICATIONS
Available size range.
Cold Drawn Seamless (CDS)
| Outside Diameter (OD) | Wall Thickness (WT) | Length | Tolerance |
|---|---|---|---|
| 10.00–25.40 mm | 0.89–4.00 mm | up to 12.8 m | ±0.10 mm / ±10% |
| 25.40–50.80 mm | 1.50–8.00 mm | up to 12.8 m | ±0.15 mm / ±10% |
| 50.80–101.60 mm | 2.00–12.00 mm | up to 12.8 m | ±0.20 mm / ±10% |
| 101.60–168.30 mm | 3.00–14.00 mm | up to 12.8 m | ±0.25 mm / ±10% |
Hot Finished Seamless (HFS)
| Outside Diameter (OD) | Wall Thickness (WT) | Length | Tolerance |
|---|---|---|---|
| 26.70–60.30 mm | 3.00–8.00 mm | up to 12.8 m | ±1% / ±12.5% |
| 60.30–88.90 mm | 4.00–15.00 mm | up to 12.8 m | ±1% / ±12.5% |
APPLICATIONS & INDUSTRIES
Where these tubes get used.
Water walls, superheaters, reheaters, and economizers in coal, gas, and biomass power stations.
Ethylene crackers, ammonia plants, and methanol reactors requiring high-temp tube integrity.
MATERIAL GRADES
From workhorse carbon to P91 alloy.
CARBON STEEL
SA 192 · SA 179 · SA 210
For low-medium pressure boilers, economizers and superheaters up to ~450°C operating temperature.
LOW-ALLOY STEEL
P11 / P22 / T11 / T22
Chrome-moly grades for elevated temperature service up to ~580°C — superheater & reheater tubes.
HIGH-ALLOY STEEL
P91 / T91
9Cr-1Mo-V martensitic for supercritical/ultra-supercritical units up to ~620°C operating temperature.
TECHNICAL ARTICLES
Latest insights on heat exchanger tubes.
ARTICLE
P91 and T91 Tubes for Supercritical Boiler Applications
Metallurgy, manufacturing requirements, and typical service conditions for modified 9Cr-1Mo alloy tubes.
ARTICLE
CDS vs HFS Boiler Tubes: Choosing the Right Manufacturing Route
Dimensional ranges, tolerances, surface finish, and when to specify Cold Drawn vs Hot Finished.
ARTICLE
Understanding IBR Certification for Boiler Tubes
What IBR covers, which grades qualify, and why it matters for your thermal power or refinery project.
RELATED PRODUCTS
Often paired with.
RELATED
Heat Exchanger Tubes
ASTM A179, A192, A213. Optimized for thermal transfer in process heat exchangers.
RELATED
Alloy Steel Seamless
ASTM A335, A213 — chrome-moly grades for high-temperature service.
RELATED
Petroleum Cracking Tube
GB 9948-1988 — refinery furnace tubes for similar high-temp service.
GET A QUOTE
Send your heat exchanger tubes spec.
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OD, WT, length, grade, quantity, MTC requirement — that’s all we need to send you a technical & commercial proposal.