+91 9920492715
sales@simplexmetal.com
ISO 9001:2015 Certified
Exporting Worldwide
Since 1995
Premium-quality industrial flanges manufactured for secure piping connections, exceptional strength, and reliable performance across oil & gas, petrochemical, power generation, marine, construction, and process industries.
Simplex Metal is a trusted manufacturer, supplier, and exporter of premium-quality Industrial Flanges engineered to provide secure, leak-proof, and durable piping connections. Manufactured using advanced production techniques and premium-grade raw materials, our flanges deliver excellent mechanical strength, corrosion resistance, and dimensional accuracy.
Our extensive range includes Weld Neck Flanges, Slip-On Flanges, Blind Flanges, Socket Weld Flanges, Threaded Flanges, Lap Joint Flanges, Long Weld Neck Flanges, Spectacle Blind Flanges, Ring Type Joint (RTJ) Flanges, Orifice Flanges, and Custom Flanges in Carbon Steel, Stainless Steel, Alloy Steel, Duplex Steel, Super Duplex Steel, and Nickel Alloy grades.
Serving industries such as Oil & Gas, Petrochemical, Chemical Processing, Marine, Offshore, Power Generation, Water Treatment, Pharmaceutical, and Heavy Engineering, our Industrial Flanges are manufactured in accordance with international standards to ensure outstanding sealing performance and long-term reliability under demanding operating conditions.
Our Carbon Steel Flanges are manufactured in accordance with international standards to deliver exceptional strength, dimensional accuracy, and reliable sealing performance for high-pressure and high-temperature piping systems.
| Specification | Details |
|---|---|
| Standards | ASME B16.5, ASME B16.47 Series A & B, MSS SP-44, API 6A, API 605, EN 1092-1, DIN, BS, JIS |
| Available Grades | ASTM A105, ASTM A350 LF2, ASTM A694 F42, F46, F52, F60, F65, F70 |
| Flange Types | Weld Neck, Slip-On, Blind, Socket Weld, Threaded, Lap Joint, Spectacle Blind, Orifice, Long Weld Neck, Ring Type Joint (RTJ) |
| Pressure Class | Class 150, 300, 400, 600, 900, 1500, 2500 |
| Size Range | 1/2" NB to 60" NB |
| Facing Types | Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ) |
| Manufacturing Process | Forged, Machined, Heat Treated |
| Surface Finish | Anti-Rust Oil, Black Painted, Zinc Coated, Hot Dip Galvanized |
| Testing | PMI, Hydrostatic Test, Ultrasonic Test, Radiography, Hardness Test, Third-Party Inspection |
| Applications | Oil & Gas, Petrochemical, Refineries, Power Plants, Offshore, Marine, Water Treatment, Chemical Processing, Construction |
Our Stainless Steel Flanges are manufactured to international standards and provide exceptional corrosion resistance, high mechanical strength, and excellent sealing performance for critical industrial piping systems.
| Specification | Details |
|---|---|
| Material | ASTM A182 F304 / 304L / 304H / 316 / 316L / 317 / 317L / 321 / 310 / 347 / 904L |
| Types | Weld Neck, Slip-On, Blind, Socket Weld, Lap Joint, Spectacle Blind, Ring Joint, Orifice, Long Weld Neck, Deck Flange, RTJ Flange |
| Size | 1/4" NB to 24" NB |
| Pressure Class | 150#, 300#, 400#, 600#, 900#, 1500# & 2500# |
| Standards | ASTM, ASME, ANSI, DIN, EN, MSS, BS, JIS |
| Testing | PMI, Tensile Test, Hardness Test, Hydro Test, Dimensional Inspection, Third-Party Inspection |
| Applications | Oil & Gas, Petrochemical, Chemical Processing, Marine, Offshore, Power Plants, Water Treatment, Food Processing and Pharmaceutical Industries |
Our Alloy Steel Flanges are engineered for elevated temperatures and high-pressure services, offering superior mechanical strength, durability, and long-term reliability in demanding industrial environments.
| Specification | Details |
|---|---|
| Standards | ASME B16.5, ASME B16.47, EN 1092-1, MSS SP-44, API 605, DIN, BS, JIS |
| Available Grades | ASTM A182 F1, F5, F9, F11, F12, F22, F91 |
| Flange Types | Weld Neck, Slip-On, Blind, Socket Weld, Threaded, Lap Joint, Spectacle Blind, Orifice, Long Weld Neck, RTJ Flange |
| Pressure Class | Class 150, 300, 600, 900, 1500, 2500 |
| Size Range | 1/2" NB to 60" NB |
| Facing Types | Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ) |
| Manufacturing Process | Closed Die Forged, Heat Treated, Precision CNC Machined |
| Surface Finish | Anti-Rust Oil, Black Painted, Machined, Zinc Coated |
| Testing | PMI, Ultrasonic Test, Hardness Test, Hydrostatic Test, Third-Party Inspection |
| Applications | Boilers, Heat Exchangers, Refineries, Petrochemical Plants, Power Plants, High-Temperature Piping, Oil & Gas |
Our Duplex Steel Flanges combine excellent corrosion resistance with high mechanical strength, making them ideal for aggressive industrial environments, offshore platforms, marine systems, and chemical processing applications.
| Specification | Details |
|---|---|
| Standards | ASME B16.5, ASME B16.47 Series A & B, ASTM A182, EN 1092-1, MSS SP-44, API 605, DIN, BS, JIS |
| Available Grades | ASTM A182 F51, ASTM A182 F60, UNS S31803, UNS S32205, Duplex 2205, Duplex 2304 |
| Flange Types | Weld Neck, Slip-On, Blind, Socket Weld, Threaded, Lap Joint, Spectacle Blind, Orifice, Long Weld Neck, RTJ Flange |
| Pressure Class | Class 150, 300, 600, 900, 1500, 2500 |
| Size Range | 1/2" NB to 60" NB |
| Facing Types | Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ) |
| Manufacturing Process | Closed Die Forged, Heat Treated, CNC Machined |
| Surface Finish | Pickled, Passivated, Machined, Anti-Rust Protected |
| Testing | PMI, Ultrasonic Test, Hydrostatic Test, Ferrite Test, Hardness Test, Third-Party Inspection |
| Applications | Offshore Platforms, Marine, Oil & Gas, Petrochemical, Water Treatment, Desalination Plants, Chemical Processing |
Our Super Duplex Steel Flanges are engineered for severe service environments where exceptional strength and superior resistance to pitting, crevice corrosion, and chloride stress corrosion cracking are required.
| Specification | Details |
|---|---|
| Standards | ASME B16.5, ASME B16.47 Series A & B, ASTM A182, EN 1092-1, MSS SP-44, API 605, DIN, BS, JIS |
| Available Grades | ASTM A182 F53, ASTM A182 F55, UNS S32750, UNS S32760, Super Duplex 2507, Zeron 100 |
| Flange Types | Weld Neck, Slip-On, Blind, Socket Weld, Threaded, Lap Joint, Spectacle Blind, Orifice, Long Weld Neck, RTJ Flange |
| Pressure Class | Class 150, 300, 600, 900, 1500, 2500 |
| Size Range | 1/2" NB to 60" NB |
| Facing Types | Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ) |
| Manufacturing Process | Closed Die Forged, Heat Treated, Precision CNC Machined |
| Surface Finish | Pickled, Passivated, Machined, Anti-Rust Protected |
| Testing | PMI, Ultrasonic Test, Hydrostatic Test, Ferrite Test, Hardness Test, Third-Party Inspection |
| Applications | Offshore, Marine, Chemical Processing, Oil & Gas, Heat Exchangers, Pressure Vessels, Desalination Plants, High-Chloride Environments |
Our Nickel Alloy Flanges are manufactured for highly corrosive and high-temperature service conditions. They offer exceptional resistance to oxidation, chemical attack, and extreme operating environments while ensuring reliable sealing performance.
| Specification | Details |
|---|---|
| Standards | ASME B16.5, ASME B16.47 Series A & B, ASTM B564, EN 1092-1, MSS SP-44, API 605, DIN, BS, JIS |
| Available Grades | Inconel 600, Inconel 625, Inconel 718, Incoloy 800, Incoloy 800H, Incoloy 825, Monel 400, Monel K500, Hastelloy C22, Hastelloy C276, Nickel 200, Nickel 201 |
| Flange Types | Weld Neck, Slip-On, Blind, Socket Weld, Threaded, Lap Joint, Spectacle Blind, Orifice, Long Weld Neck, Ring Type Joint (RTJ) |
| Pressure Class | Class 150, 300, 600, 900, 1500, 2500 |
| Size Range | 1/2" NB to 60" NB |
| Facing Types | Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ) |
| Manufacturing Process | Closed Die Forged, Heat Treated, Precision CNC Machined |
| Surface Finish | Pickled, Passivated, Machined, Anti-Rust Protected, Polished |
| Testing | PMI, Ultrasonic Test, Hydrostatic Test, Hardness Test, Positive Material Identification, Third-Party Inspection |
| Applications | Chemical Processing, Petrochemical, Offshore Platforms, Marine, Aerospace, Oil & Gas, Power Generation, Heat Exchangers, Pressure Vessels, Nuclear Industry |