Forging Supplier for India Power Plants: NTPC, Adani, BHEL Supply Chain

August 11, 2026


India’s power generation sector — 400+ GW of installed capacity operated by NTPC, Adani Power, Tata Power, CESC, and state utilities — is undergoing simultaneous expansion and maintenance of the existing thermal fleet. Turbine rotor disc forgings, valve body forgings for high-pressure steam systems, pressure vessel nozzle forgings for boilers, and pump shaft forgings for cooling water systems are the primary forging categories. Vinir’s IBR certification, P91 open die forging capability, and proximity to BHEL (Trichy, Haridwar) and Siemens Energy India positions it as a preferred domestic forging supplier for India’s power sector.

ApplicationMaterialStandardOEM / Operator
Supercritical boiler pressure vessel nozzlesSA-335 P91, SA-182 F91ASME VIII, IBRBHEL, Thermax, L&T Power
Steam turbine rotor disc forgings30CrMoV9 / CrMoV alloy steelEN 10269, IS 2004BHEL, Siemens India, GE India
Main steam stop valve bodyP91, F91 alloy steelASME B16.34, IBRNTPC, Adani Power, state utilities
Boiler feed pump shaft forgingEN24, 4340, 17-4PHBS EN 10083, IS 2004KSB India, Kirloskar Brothers, WPIL
Wind turbine tower flange (onshore)S355NLEN 10025-3, IRISSuzlon, Inox Wind, Envision

India’s supercritical and ultra-supercritical power plants — NTPC’s Khargone (1,320 MW), Meja (1,320 MW), Darlipali (1,600 MW), and Adani Power’s Godda (1,600 MW) ultra-supercritical plant operate at steam conditions of 600°C and 250+ bar. At these extreme conditions, the standard P22 (2.25Cr-1Mo) steel used in older subcritical plants is inadequate P91 (9Cr-1Mo-V-Nb) alloy steel is mandatory for main steam piping, steam turbine inlet valve bodies, and superheater header nozzle forgings. P91 forging in India has historically been imported Vinir’s P91 forging capability directly addresses this import dependency.

IBR (Indian Boiler Regulations) certification is the regulatory requirement for all pressure parts in Indian boiler and steam system applications. IBR requires independent inspection of pressure parts by an IBR-authorised surveyor (from agencies like Lloyd’s Register India, Bureau Veritas India, TÜVIR India) who witnesses heat treatment and mechanical testing. IBR certification is the key credential distinguishing Indian forging manufacturers qualified for domestic power sector supply from those producing for general industrial markets.

BHEL — India’s largest power equipment manufacturer procures forged components for its steam turbine, boiler, and transformer manufacturing programmes at Haridwar, Trichy, Bhopal, and Hyderabad. BHEL’s vendor qualification requires ISO 9001 minimum (IBR for pressure components), material specification compliance, and qualification forging tests. Vinir’s proximity to BHEL’s Southern Region (Trichy, 300 km from Hosur) and established quality system are assets for BHEL supplier qualification.

India’s renewable energy expansion — 500 GW by 2030 under the National Renewable Energy mission creates a domestic wind forging opportunity. Suzlon Group and Inox Wind India’s largest domestic wind turbine manufacturers source S355NL tower flanges and 42CrMo4 bearing rings from ring rolling manufacturers. At 3,000–4,000 turbine installations per year, the domestic Indian wind forging demand is approximately 18,000–32,000 individual ring-rolled forgings annually a major domestic opportunity alongside Vinir’s existing export wind market supply.

Contact Us

Vinir Engineering — Capability for this Market

  1. IBR certified — the mandatory credential for Indian power sector pressure component supply.
  2. P91 (SA-182 F91, SA-335 P91) open die forgings for supercritical boiler nozzle supply.
  3. CrMoV steam turbine rotor disc forgings to IS 2004 and EN 10269.
  4. IS 2004 and ASTM A182 dual certification for domestic and export power sector supply.
  5. NABL Charpy at elevated temperature (650°C) for CrMoV rotor qualification.
  6. Boiler feed pump shaft forgings in EN24 and 17-4PH.
  7. S355NL ring rolling to Ø4,500mm for Suzlon and Inox Wind tower flange supply.
  8. IBR survey coordination with Lloyd’s Register India and Bureau Veritas India.

Frequently Asked Questions

1.What is IBR certification and why is it mandatory for Indian power plant forging supply?+–
IBR (Indian Boiler Regulations, 1950, as amended) is India’s regulatory framework governing the design, manufacture, inspection, and operation of boilers and pressure vessels. Under IBR, all pressure parts incorporated in IBR-registered boilers including nozzle forgings, valve bodies, and structural fittings in steam service above specified pressure-temperature thresholds must be manufactured and inspected per IBR provisions. The IBR inspection requires an IBR-authorised inspector to witness heat treatment and mechanical testing of each lot. An Indian forging manufacturer without IBR certification cannot supply pressure components to IBR-regulated Indian boilers regardless of their other quality credentials.
2.What is BHEL’s role in India’s power sector and what forging categories does it procure?+–
BHEL is India’s largest manufacturer of power generation equipment steam turbines, boilers, generators, and transformers. BHEL’s installed base represents approximately 50% of India’s total power generation capacity. BHEL procures forged components for: steam turbine rotor discs and shaft forgings (at Haridwar facility), pressure vessel nozzle forgings for supercritical boilers (at Trichy), and transformer structural forgings (at Bhopal). BHEL’s vendor registration for forging suppliers requires ISO 9001 or AS9100D quality system, IBR certification for pressure components, material specification compliance evidence, and qualification test forgings.
3.What is the difference between subcritical, supercritical, and ultra-supercritical steam conditions and why does it affect forging material selection?+–
Subcritical steam conditions (below 220.6 bar) use conventional carbon steel (P11, P22) for boiler nozzle forgings adequate up to approximately 565°C. Supercritical conditions (above 220.6 bar, 565–600°C) require P91 (9Cr-1Mo-V-Nb) alloy steel for main steam piping conventional steel lacks adequate creep resistance at these elevated conditions. Ultra-supercritical (above 600°C, 280+ bar) requires advanced alloy steels (P92, 617 alloy for the hottest sections). Each generation of steam conditions requires a different forging alloy the steam conditions specification flows directly to the forging material specification.
4.What domestic Indian wind turbine tower flange opportunity exists for ring rolling manufacturers?+–
India’s domestic wind turbine manufacturers Suzlon Energy (Pune), Inox Wind (Noida), Envision Group, and Wind World collectively produce 3–4 GW of wind turbine capacity annually. Each turbine requires 3–5 tower flanges in S355NL (Ø1,500–3,500mm for Indian onshore turbines in the 2–4 MW class) and 6–8 bearing ring forgings in 42CrMo4. At 3,000–4,000 turbine installations per year, the domestic Indian wind forging demand is approximately 18,000–32,000 individual ring-rolled forgings annually comparable to a mid-sized European national market.
5.What is Adani Power’s Godda ultra-supercritical plant and what forging categories does it use?+–
Adani Power’s Godda plant in Jharkhand (1,600 MW) is India’s first dedicated power export plant its entire output is sold to Bangladesh Power Development Board. Godda operates at ultra-supercritical steam conditions (600°C, 275 bar) among the most advanced in Indian operation. The main steam piping and valve bodies use SA-335 P91 and P92 alloy steels; the supercritical boiler pressure parts use SA-182 F91 nozzle forgings. Adani Power’s ongoing fleet maintenance programme creates recurring demand for replacement valve body and nozzle forgings in P91 as original components reach end of service life.