Shree Impex Steel supplies IBR approved buttweld pipe fittings for Indian power plants and boiler projects. Form III-C documentation arranged. WP91, WP22, WP11, WPB grades. All sizes. Mumbai India.
Indian Boiler Regulations (IBR) 1950 mandate specific documentation and inspection for pipe fittings used in boiler steam service above 3.5 kg/cm². All NTPC, BHEL, state power utility, and industrial boiler projects in India require IBR compliance.
The primary IBR document for pipe fittings. We arrange Form III-C certification through IBR approved inspecting authorities. All paperwork handled from inquiry to dispatch — no delays at your project site.
WP91 (P91) for ultra-supercritical power plants, WP22 (P22) for subcritical boilers, WP11 for medium temperature steam, WPB for feed water and utility steam lines. All with IBR compliance documentation.
15 years supplying buttweld fittings to Indian power projects. We understand IBR documentation requirements, inspection procedures, and the timeline pressure of power plant construction schedules.
Always mention IBR requirement when sending your inquiry. IBR documentation cannot be added after supply — it must be arranged before manufacturing and dispatch. We will confirm IBR compliance at quotation stage.
| Grade | Service | Application | IBR Available |
|---|---|---|---|
| WP91 (P91) | Ultra-supercritical steam | Main steam, hot reheat | ✓ Yes |
| WP22 (P22) | Subcritical steam | Main steam lines, headers | ✓ Yes |
| WP11 (P11) | Medium temp steam | Boiler drum, economizer | ✓ Yes |
| WPB Carbon | Feed water, utility steam | BFP discharge, aux steam | ✓ Yes |
| SS 321 | High temp stainless | Superheater outlet | ✓ Yes |
| SS 347H | High temp stainless | Reheater, superheater | ✓ Yes |
Grade, type, size, schedule, quantity. We respond within 4 hours.