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Which materials are used in power generation?
Quick answer
P91 Alloy Steel (Modified 9% chromium-1% molybdenum-vanadium) for main steam and hot-reheat piping; P22 Alloy Steel (2¼% chromium-1% molybdenum) for headers and lower-temperature steam lines; P11 Alloy Steel (1¼% chromium-½% molybdenum) for boiler tubes and headers; SS 347H Stainless Steel for superheater and reheater tubes; SS 304H Stainless Steel for superheater tubing.
What are the material challenges in power generation?
Creep and creep-fatigue in steam piping and headers
Steam-side oxidation of superheater tubes
Flow-accelerated corrosion in feedwater systems
Condenser tube corrosion from cooling water
Materials we supply for this industry
| Material | Typical use | Grade family |
|---|---|---|
| P91 Alloy Steel (Modified 9% chromium-1% molybdenum-vanadium) | Main steam and hot-reheat piping | Alloy Steel |
| P22 Alloy Steel (2¼% chromium-1% molybdenum) | Headers and lower-temperature steam lines | Alloy Steel |
| P11 Alloy Steel (1¼% chromium-½% molybdenum) | Boiler tubes and headers | Alloy Steel |
| SS 347H Stainless Steel | Superheater and reheater tubes | Stainless Steel |
| SS 304H Stainless Steel | Superheater tubing | Stainless Steel |
| Titanium Grade 2 | Seawater-cooled condenser tubes | Non-Ferrous Metals |
| Cupro-Nickel 70/30 | Condenser and feedwater heater tubes | Non-Ferrous Metals |
Popular products for power generation
Which standards apply?
Related applications
Power Generation markets we supply
Procurement considerations
- Specify grade, specification and edition
- Define tests and certificates (EN 10204 3.1 / 3.2)
- Include third-party inspection and PMI where required
- Confirm marking, packing and destination documentation
We support power generation buyers with documentation and inspection and value-added services.
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Frequently asked questions
Why is P91 used in modern power plants?
Its creep strength allows much thinner walls than P22 at supercritical steam conditions, reducing weight and thermal fatigue.
Which product forms do you supply for power generation?
Pipes, Tubes, Fittings, Flanges, Plates, in the grades listed above, from stock or mill-sourced with EN 10204 certificates.
Which standards apply to power generation materials?
Do you supply power generation projects outside India?
Yes, including United Arab Emirates, Saudi Arabia, Qatar, Kuwait, Indonesia, Vietnam.