Flanges Supplier & Exporter
Global Steel Industries manufactures and supplies a complete range of forged steel flanges engineered to connect, seal, and reinforce piping systems under demanding pressure, temperature, and corrosive conditions. Manufactured to ASME, ASTM, and DIN standards and backed by ISO 9001:2015, ISO 14001:2018, and ISO 45001:2018 certification, our flanges are trusted across oil & gas, petrochemical, power generation, desalination, and marine projects in India, the UAE, and the wider GCC region
- Weld Neck Flanges — tapered hub for high-pressure, high-temperature pipelines
- Slip-On Flanges — economical, easy alignment for low-pressure applications
- Blind Flanges — used to seal pipe ends, vessel openings, and valve outlets
- Socket Weld Flanges — smooth bore for small-diameter, high-pressure piping
- Threaded (Screwed) Flanges — bolted connections without welding, ideal for hazardous areas
- Lap Joint Flanges — used with stub ends for systems requiring frequent dismantling
- Orifice Flanges — designed for flow measurement in process piping
- Spectacle Blind Flanges — for positive isolation during maintenance and shutdowns
| Material | Common Grades |
|---|---|
| Carbon Steel | ASTM A105, A350 LF2 |
| Stainless Steel | A182 F304/304L, F316/316L, F321 |
| Alloy Steel | A182 F5, F9, F11, F22, F91 |
| Duplex / Super Duplex | A182 F51, F53, F55 |
| Nickel Alloys | Inconel 600/625, Hastelloy C276, Monel 400 |
- Dimensional: ASME B16.5 (NPS ½” – 24″), ASME B16.47 Series A & B (NPS 26″ – 60″)
- Material: ASTM A105, A182, A350; EN 1092-1; NORSOK M-650
- Pressure Classes: 150#, 300#, 400#, 600#, 900#, 1500#, 2500#
- Testing: Hydrostatic testing, PMI, ultrasonic (UT), radiographic (RT), and dye penetrant (DP) inspection
- Facing: Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ)
Industries we serve
- Oil & Gas — upstream, midstream, and downstream pipeline connections
- Petrochemical — process piping under high pressure and corrosive service
- Power Generation — boiler and high-pressure steam line flanging
- Desalination & Water Treatment — corrosion-resistant flange assemblies
- Marine & Offshore — flanges rated for harsh, saline environments
- Construction & Infrastructure — structural and utility piping networks
- 20+ years of manufacturing experience with a 20,000–30,000 ton annual production capacity
- ADNOC pre-qualified supplier serving UAE and GCC oil & gas clients
- Mill test certificates (MTC) and third-party inspection (TPI) support for every consignment
- Custom sizes, facings, and pressure classes available on request
- Consolidated export shipments with full documentation for GCC customs clearance
Flanges are widely used in oil & gas pipelines, petrochemical plants, power stations, desalination facilities, and marine piping systems requiring secure, leak-proof, and serviceable joints
We supply flanges in carbon steel (A105), stainless steel (A182 F304/F316), alloy steel (F5, F11, F22), and duplex/super duplex grades (F51, F53) to match project specifications
Yes. Stainless steel, duplex, and nickel alloy flange grades offer strong corrosion resistance and are suited to offshore, marine, and chemical processing environments
Yes, flanges can be supplied in custom pressure classes, facings (RF/FF/RTJ), bore sizes, and material grades to suit specific project drawings and specifications
We supply flanges across standard ASME pressure classes of 150#, 300#, 400#, 600#, 900#, 1500#, and 2500#.
Flanges are available from NPS ½" up to NPS 60", covering both ASME B16.5 and B16.47 dimensional standards
Yes, facing type (raised face, flat face, or ring type joint) affects the sealing method and gasket compatibility, and is selected based on system pressure and service conditions
