LEADING METAL GASKETS MANUFACTURER, EXPORTER & SUPPLIER
Manufacturer, Exporter & Supplier of Copper-Nickel, Stainless Steel & Alloy Industrial Gaskets
High-Integrity Metal-to-Metal Sealing for Extreme Pressure Offshore & Subsea Applications
Ring Type Joint (RTJ) gaskets are solid metallic sealing rings designed to seat into a precision-machined groove on RTJ flange faces, creating an exceptionally high-integrity metal-to-metal seal. As the flange bolts are tightened, the ring deforms plastically into the groove, establishing a seal capable of withstanding extreme pressures, high temperatures, and aggressive fluid media.
Sunflex Metalloy manufactures RTJ gaskets in both R-type (standard) and RX / BX type profiles to API 6A and ASME B16.20 specifications, across seven premium alloys — so you can match the ring material precisely to your process fluid, temperature, and corrosion requirements.
Available Materials: Copper-Nickel · Stainless Steel · Copper · Brass · Inconel · Monel · Hastelloy
Sunflex Metalloy manufactures Ring Type Joint (RTJ) Gaskets in seven premium alloys, so you can match the gasket material precisely to your process fluid, temperature, and corrosion requirements.
Copper-Nickel (Cu-Ni 90/10 / 70/30) is one of the most requested materials for ring type joint (rtj) gaskets, offering outstanding seawater & biofouling resistance, with a maximum operating temperature of 400°C and a typical pressure rating of Class 150–2500 — making it the benchmark choice for marine, offshore & desalination duty.
Best For: Offshore wellheads · Subsea pipeline flanges · High-pressure process valves · Christmas tree assemblies · Deepwater production equipment
Stainless Steel (SS 304 / 316 / 316L) is one of the most requested materials for ring type joint (rtj) gaskets, offering excellent general & chemical corrosion resistance, with a maximum operating temperature of 600°C and a typical pressure rating of Class 150–2500 — making it the most versatile, cost-effective all-round choice.
Best For: Offshore wellheads · Subsea pipeline flanges · High-pressure process valves · Christmas tree assemblies · Deepwater production equipment
Copper (C11000 / ETP) is one of the most requested materials for ring type joint (rtj) gaskets, offering good ductility & soft-sealing conformability, with a maximum operating temperature of 250°C and a typical pressure rating of Class 150–1500 — making it low-to-medium pressure sealing with excellent conductivity.
Best For: Offshore wellheads · Subsea pipeline flanges · High-pressure process valves · Christmas tree assemblies · Deepwater production equipment
Brass (CZ108 / C36000) is one of the most requested materials for ring type joint (rtj) gaskets, offering moderate corrosion resistance, good machinability, with a maximum operating temperature of 200°C and a typical pressure rating of Class 150–900 — making it economical general-duty & instrumentation sealing.
Best For: Offshore wellheads · Subsea pipeline flanges · High-pressure process valves · Christmas tree assemblies · Deepwater production equipment
Inconel (600 / 625 / 718) is one of the most requested materials for ring type joint (rtj) gaskets, offering exceptional oxidation & high-temperature resistance, with a maximum operating temperature of 1000°C+ and a typical pressure rating of Class 150–2500 — making it extreme heat, cryogenic & superalloy-grade service.
Best For: Offshore wellheads · Subsea pipeline flanges · High-pressure process valves · Christmas tree assemblies · Deepwater production equipment
Monel (400 / K-500) is one of the most requested materials for ring type joint (rtj) gaskets, offering outstanding resistance to acids & seawater, with a maximum operating temperature of 480°C and a typical pressure rating of Class 150–2500 — making it hydrofluoric acid & chemical processing duty.
Best For: Offshore wellheads · Subsea pipeline flanges · High-pressure process valves · Christmas tree assemblies · Deepwater production equipment
Hastelloy (C276 / C22) is one of the most requested materials for ring type joint (rtj) gaskets, offering extreme resistance to highly corrosive/oxidizing media, with a maximum operating temperature of 1000°C+ and a typical pressure rating of Class 150–2500 — making it the premium choice for the harshest chemical environments.
Best For: Offshore wellheads · Subsea pipeline flanges · High-pressure process valves · Christmas tree assemblies · Deepwater production equipment
Not sure which material is right for your ring type joint (rtj) gaskets application? Use this comparison to match your operating conditions to the right alloy.
| Material | Pressure Class | Max Temp | Flange Face Type | Reusable | Corrosion Resistance |
|---|---|---|---|---|---|
| Copper-Nickel | Class 150–2500 | Up to 400°C | RTJ Groove | No | Outstanding seawater & biofouling resistance |
| Stainless Steel | Class 150–2500 | Up to 600°C | RTJ Groove | No | Excellent general & chemical corrosion resistance |
| Copper | Class 150–1500 | Up to 250°C | RTJ Groove | No | Good ductility & soft-sealing conformability |
| Brass | Class 150–900 | Up to 200°C | RTJ Groove | No | Moderate corrosion resistance, good machinability |
| Inconel | Class 150–2500 | Up to 1000°C+ | RTJ Groove | No | Exceptional oxidation & high-temperature resistance |
| Monel | Class 150–2500 | Up to 480°C | RTJ Groove | No | Outstanding resistance to acids & seawater |
| Hastelloy | Class 150–2500 | Up to 1000°C+ | RTJ Groove | No | Extreme resistance to highly corrosive/oxidizing media |
All Ring Type Joint (RTJ) Gaskets manufactured by Sunflex Metalloy conform to internationally recognized material, dimensional, and quality standards. We supply to EPC contractors, project engineers, and maintenance teams across India and internationally — with complete documentation packages.
