LEADING METAL GASKETS MANUFACTURER, EXPORTER & SUPPLIER
Manufacturer, Exporter & Supplier of Copper-Nickel, Stainless Steel & Alloy Industrial Gaskets
Machined Solid-Body Rings for the Highest Sealing Reliability at Extreme Temperature & Pressure
Solid Metal gaskets are precision-manufactured in flat ring, lens ring, oval, octagonal, and custom machined profiles — to standard dimensions or fully custom specifications from your engineering drawings. Because the entire gasket body is solid metal, they offer the highest sealing reliability and temperature/pressure capability of any gasket form.
Sunflex Metalloy manufactures solid metal gaskets across all seven of our alloys, machined from solid bar/plate or cut and formed from sheet to your exact specification.
Available Materials: Copper-Nickel · Stainless Steel · Copper · Brass · Inconel · Monel · Hastelloy
Sunflex Metalloy manufactures Solid Metal 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 solid metal 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: High-pressure steam systems · High-temperature process flanges · Pressure vessel closures · Subsea and deepwater sealing · Maximum sealing reliability applications
Stainless Steel (SS 304 / 316 / 316L) is one of the most requested materials for solid metal 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: High-pressure steam systems · High-temperature process flanges · Pressure vessel closures · Subsea and deepwater sealing · Maximum sealing reliability applications
Copper (C11000 / ETP) is one of the most requested materials for solid metal 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: High-pressure steam systems · High-temperature process flanges · Pressure vessel closures · Subsea and deepwater sealing · Maximum sealing reliability applications
Brass (CZ108 / C36000) is one of the most requested materials for solid metal 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: High-pressure steam systems · High-temperature process flanges · Pressure vessel closures · Subsea and deepwater sealing · Maximum sealing reliability applications
Inconel (600 / 625 / 718) is one of the most requested materials for solid metal 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: High-pressure steam systems · High-temperature process flanges · Pressure vessel closures · Subsea and deepwater sealing · Maximum sealing reliability applications
Monel (400 / K-500) is one of the most requested materials for solid metal 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: High-pressure steam systems · High-temperature process flanges · Pressure vessel closures · Subsea and deepwater sealing · Maximum sealing reliability applications
Hastelloy (C276 / C22) is one of the most requested materials for solid metal 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: High-pressure steam systems · High-temperature process flanges · Pressure vessel closures · Subsea and deepwater sealing · Maximum sealing reliability applications
Not sure which material is right for your solid metal 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 | All types | No | Outstanding seawater & biofouling resistance |
| Stainless Steel | Class 150–2500 | Up to 600°C | All types | No | Excellent general & chemical corrosion resistance |
| Copper | Class 150–1500 | Up to 250°C | All types | No | Good ductility & soft-sealing conformability |
| Brass | Class 150–900 | Up to 200°C | All types | No | Moderate corrosion resistance, good machinability |
| Inconel | Class 150–2500 | Up to 1000°C+ | All types | No | Exceptional oxidation & high-temperature resistance |
| Monel | Class 150–2500 | Up to 480°C | All types | No | Outstanding resistance to acids & seawater |
| Hastelloy | Class 150–2500 | Up to 1000°C+ | All types | No | Extreme resistance to highly corrosive/oxidizing media |
All Solid Metal 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.
