Repsol Steel LLP is a trusted industrial flange supplier for buyers across the USA, Europe, Africa, Mexico, and Oman. We supply a comprehensive range of pipe flanges — including weld neck, slip-on, blind, lap joint, socket weld, and threaded flanges — in stainless steel, carbon steel, alloy steel, duplex, and exotic alloys for Oil & Gas, petrochemical, refinery, power generation, and industrial piping applications.
With over 25 years of combined industry experience and a proven export network, we serve EPC contractors, procurement teams, maintenance engineers, and fabrication units worldwide. Every industrial flange we supply complies with ASME B16.5, ASME B16.47, ASTM A105, ASTM A182, ASTM A350, and DIN standards, with full material traceability, dimensional inspection reports, and documentation that meets the requirements of projects in the USA, Europe, Africa, Mexico, and Oman.
Whether you require standard SS316 weld neck flanges for a petrochemical plant in Europe, A105 slip-on flanges for a refinery in the USA, or A182 F11 blind flanges for a high-temperature power plant in Africa or Oman — Repsol Steel LLP delivers the right industrial flange solution, on time, with complete export documentation.
A complete industrial flange portfolio covering weld neck, slip-on, blind, lap joint, socket weld, and threaded flanges — manufactured in SS, CS, alloy steel, duplex, and exotic alloys for high-pressure and high-temperature piping systems.
Weld neck flanges with a long tapered hub that provides smooth stress distribution. Used in high-pressure and high-temperature piping systems where cyclic loading is a concern.
Compliance: ASME B16.5, B16.47
Face Types: RF, FF, RTJ
Size Range: ½" to 60"
Slip-on flanges that slide over the pipe and are fillet welded at both ends. Cost-effective and easy to align, used in low-pressure and moderate-pressure piping systems.
Compliance: ASME B16.5, B16.47
Face Types: RF, FF
Size Range: ½" to 60"
Blind flanges with no center hole, used to close off pipe ends, valves, and pressure vessel openings. Essential for isolation, inspection, and future expansion.
Compliance: ASME B16.5, B16.47
Face Types: RF, FF, RTJ
Size Range: ½" to 60"
Lap joint flanges used with stub ends for piping systems requiring frequent dismantling. The flange is free to rotate, allowing easy alignment of bolt holes.
Compliance: ASME B16.5
Face Types: RF, FF
Size Range: ½" to 24"
Socket weld flanges for high-pressure and small-bore piping. The pipe is inserted into the socket and fillet welded, providing a strong, leak-proof joint.
Compliance: ASME B16.5
Face Types: RF, FF, RTJ
Size Range: ½" to 4"
Threaded flanges for utility piping and where welding is not feasible. Available with NPT or BSP threads per ASME B1.20.1 for low-pressure and moderate-pressure service.
Compliance: ASME B16.5
Thread Types: NPT, BSP, BSPT
Size Range: ½" to 24"
Industrial flanges are supplied in different materials and grades to suit specific pressure, temperature, and media conditions. The material grade determines the mechanical strength, corrosion resistance, and temperature capability of the flange. We supply industrial flanges in the following materials and grades:
All industrial flanges we supply are accompanied by Material Test Certificates (MTC) confirming the exact grade, mechanical properties, and heat number — ensuring full traceability and compliance with international project specifications.
| Parameter | Specification |
|---|---|
| Flange Types | Weld Neck, Slip-On, Blind, Lap Joint, Socket Weld, Threaded, Orifice, Long Weld Neck |
| Materials | Stainless Steel (SS304, SS316, SS321), Carbon Steel (A105), Alloy Steel (F11, F22, F91), Low-Temp (LF2), Duplex (F51, F53, F55), Exotic Alloys (Monel, Inconel, Hastelloy) |
| Size Range | ½" to 60" standard; larger sizes available on request |
| Pressure Classes | Class 150, 300, 600, 900, 1500, 2500 (ASME B16.5); Class 75 to 900 (ASME B16.47) |
| Face Types | RF (Raised Face), FF (Flat Face), RTJ (Ring Type Joint) |
| Standards Compliance | ASME B16.5, ASME B16.47; ASTM A105, A182, A350; DIN, BS, EN 1092-1 |
| Export Documentation | Commercial Invoice, Packing List, Bill of Lading, Certificate of Origin, MTC (EN 10204 3.1) |
| Inspection Options | Third-party inspection (SGS, BV, TUV, Intertek) available on request |
| Additional Documentation | Hardness test reports, NACE compliance, H2S service documentation available on request |
Correct industrial flange selection is critical to ensuring a leak-free piping system and long-term operational safety. The flange type, material grade, and pressure class must be matched to the operating pressure, temperature, and media. Our technical team recommends evaluating four key factors before finalizing an industrial flange:
If you are unsure which industrial flange specification best suits your application, our technical team is available to review your piping drawings, process data, and project specifications — and recommend the most suitable industrial flange solution.
We specialize in industrial flange supply — offering weld neck, slip-on, blind, lap joint, socket weld, threaded, orifice, and long weld neck flanges in SS, CS, alloy steel, duplex, and exotic alloys. All flanges are manufactured to ASME, ASTM, and DIN standards.
We supply industrial flanges from ½" to 60" as standard, with Class 150 to 2500 pressure ratings per ASME B16.5 and Class 75 to 900 per ASME B16.47. Larger sizes and custom configurations are available on request.
Every industrial flange batch is backed by Material Test Certificates (MTC) and dimensional inspection reports, and can be supplied with NACE compliance documentation, hardness test reports, and third-party certification on request.
Non-standard sizes, pressure classes, materials, face types, and industrial flange configurations are manufactured according to drawings, piping specifications, and project requirements — with quick turnaround times.
We supply industrial flanges to clients in the USA, Europe, Africa, Mexico, and Oman — with packaging, documentation, and compliance structured for international procurement.
Our experienced technical team assists with industrial flange selection, material and pressure class recommendations, and installation guidance. Post-supply support includes documentation follow-up and replacement coordination.
Repsol Steel LLP supplies industrial flanges to a wide range of process industries across USA, Europe, Africa, Mexico, and Oman — where reliable bolted connections are essential.
Industrial flanges supplied for wellhead equipment, pipeline systems, process piping, and high-pressure transfer lines in upstream, midstream, and downstream operations.
Industrial flanges supplied for reactors, heat exchangers, process piping, and storage systems handling hydrocarbons at high pressures and temperatures.
F11, F22, and F91 industrial flanges supplied for high-temperature and high-pressure process piping in crude distillation, catalytic cracking, and hydroprocessing units.
High-temperature F11, F22, and F91 industrial flanges supplied for boilers, steam systems, turbine connections, and high-pressure auxiliary piping in thermal and nuclear power plants.
SS316 and SS904L industrial flanges supplied for aggressive chemical and corrosive media applications in reactors, storage tanks, and process equipment.
Duplex and Super Duplex industrial flanges supplied for subsea wellhead equipment, manifolds, and flowlines per API 17D — with superior resistance to seawater and chloride stress corrosion.
Repsol Steel LLP is recognized as a reliable industrial flange supplier for international procurement teams, EPC contractors, and maintenance projects. Our export documentation, packaging, and standard compliance are structured for smooth cross-border supply to buyers in the USA, Europe, Africa, Mexico, and Oman — ensuring your industrial flanges arrive on time, in specification, and ready for installation.
USA: Industrial flange supply for Oil & Gas, petrochemical & power projects
Europe: Industrial flanges for chemical, refinery & process industries
Africa: Industrial flanges for refinery, petrochemical & power projects
Mexico: Industrial flange supply for chemical plants & refinery operations
Oman: Industrial flanges for Oil & Gas, petrochemical & power projects
All industrial flanges are supplied with material certificates, dimensional inspection reports, and third-party certification as required by project specifications.
An industrial flange is a plate or ring used to connect pipes, valves, pumps, and other equipment to form a piping system. It provides a bolted connection that can be easily assembled and disassembled for maintenance or inspection.
We supply weld neck, slip-on, blind, lap joint, socket weld, threaded, orifice, and long weld neck flanges — in various grades, sizes, pressure classes, and face types per project specifications.
We supply industrial flanges in ASTM A105 (carbon steel), ASTM A182 F304, F316, F321 (stainless steel), ASTM A182 F11, F22, F91 (alloy steel), ASTM A350 LF2 (low-temp carbon steel), and duplex grades F51, F53, F55.
We supply industrial flanges primarily to the USA, Europe, Africa, Mexico, and Oman, serving Oil & Gas, petrochemical, refinery, power, and chemical processing projects in these regions.
Yes. We offer custom sizes, pressure classes, materials, face types, and industrial flange configurations based on drawings, piping specifications, and project requirements — with quick turnaround times for export orders.
Send us your flange specifications, pressure class requirements, or drawings. Our export team will respond within 24 hours with a tailored quotation.
Repsol Steel LLP is a leading manufacturer and stockholder of high-quality piping products, serving the Oil, Gas, Petrochemical, and Nuclear industries with reliable engineering solutions.
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