Home > Incoloy 800/800H/800HT Flanges
Incoloy 800, 800H, and 800HT flanges are top-notch piping components crafted for high-temperature and high-pressure environments. Made from nickel–iron–chromium alloys, these flanges deliver outstanding strength, resistance to oxidation, and impressive thermal stability over time. The 800H and 800HT grades are specifically designed with enhanced creep and rupture strength, making them ideal for elevated temperature applications. Manufactured to meet international standards, these flanges guarantee reliable, leak-free connections and a long service life. They’re commonly found in critical industrial piping systems where durability against heat, pressure, and corrosive conditions is a must.
The Incoloy 800 series alloys primarily consist of nickel, iron, and chromium, with carefully controlled amounts of carbon, aluminum, and titanium. The 800H and 800HT grades feature a higher carbon content and a controlled grain size, enhancing their creep resistance and high-temperature strength. These flanges boast impressive tensile and yield strength, excellent toughness, and remarkable resistance to oxidation and carburization. They maintain their mechanical stability even under prolonged exposure to heat and high-pressure conditions.
Specifications : ASTM B564 / ASME SB564
Dimensions : ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Standard : ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
Size : 1/2″ (15 NB) to 48″ (1200NB)
Class/Pressure : 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Flange Face Type : Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Type : Slip on flanges, Socket weld flanges, Forged flanges, Blind flanges, Welding neck flange, Ring type joint flange, Spectacle blind flange, Reducing flange, Threaded / Screwed flange, Tongue and Groove flange, Long weld neck flange, Flat flange, Industrial flanges, Plate flange, ASME B16.5 flanges.
| Grade | C | Mn | Si | S | Cu | Fe | Ni | Cr | Al | Ti |
| Incoloy 800 | 0.10 max | 1.50 max | 1.00 max | 0.015 max | 0.75 max | 39.50 min | 30 – 35 | 19 – 23 | 0.15 – 0.60 | 0.15 – 0.60 |
| Incoloy 800H | 0.05 – 0.10 | 1.50 max | 1.00 max | 0.015 max | 0.75 max | 39.50 min | 30 – 35 | 19 – 23 | 0.15 – 0.60 | 0.15 – 0.60 |
| Incoloy 800HT | 0.06 – 0.10 | 1.50 max | 1.00 max | 0.015 max | 0.75 max | 39.50 min | 30 – 35 | 19 – 23 | 0.15 – 0.60 | 0.15 – 0.60 |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.94 g/cm3 | 1385 °C (2525 °F) | Psi – 75,000 , MPa – 520 | Psi – 30,000 , MPa – 205 | 30 % |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Choosing Blind Flanges from Yousef Metals ensures unmatched quality and long-lasting performance. These Flanges are engineered for superior corrosion resistance, strength, and precision, making them ideal for a wide range of industrial applications. With a strong focus on customer satisfaction, timely delivery, and technical expertise. Yousef Metals providing reliable and high-performance Incoloy 825 Flanges tailored to meet your specific operational and project requirements.
Yousef Metals, one of the leading suppliers of Incoloy 825 Flanges in Doha, Qatar, offers a wide selection of high-quality flanges suitable for various industrial applications. With an extensive inventory, reliable sourcing, and a strong commitment to quality, service, and timely delivery, Yousef Metals has established itself as a trusted name for premium stainless steel products across the Qatar.
Yes, we provide Incoloy 800/800H/800HT Flanges to match your exact project requirements. At Yousef Metals, our team is dedicated to delivering tailored flanges solutions that ensure precision and reliability. For more information or personalized assistance, reach out to us at sales@yousefmetals.com.
Flanges made of Incoloy 800, 800H, and 800HT are frequently utilized in corrosive and high-temperature settings. They are perfect for heat exchangers, furnace parts, superheater tubes, and piping systems in chemical and petrochemical plants because of their exceptional resistance to oxidation and carburization. They are frequently employed in the nuclear, oil and gas, and power generation sectors. These flanges work well in heat-treating apparatus, pressure vessels, and steam reforming units. When superior creep and stress rupture strength are needed, Incoloy 800H and 800HT variants are recommended because they guarantee long-term durability and dependability under harsh mechanical and thermal conditions.
