Incoloy 800HT Flanges Manufacturers in India
Incoloy 800HT, part of the Incoloy 800 series, is a high-performance nickel-iron-chromium alloy designed to excel in extreme environments. This alloy's unique combination of mechanical strength, resistance to oxidation, and outstanding stability at elevated temperatures makes it an ideal material for various industries. Among the many products made from this alloy, Incoloy 800HT flanges stand out due to their durability, versatility, and reliability. In this blog, we will dive deep into the properties, applications, and advantages of Incoloy 800HT flanges.
What is Incoloy 800HT?
Incoloy 800HT is a high-temperature alloy made primarily of nickel (30-35%), iron (39.5% minimum), and chromium (19-23%). It also contains small amounts of aluminium and titanium, which enhance its creep and rupture strength at elevated temperatures.
Sankalp Alloys Overseas is a leading Manufacturer, Supplier, Stockist and Exporter of Incoloy 800HT Flanges, also known as UNS N08811. Incoloy 800HT is a nickel-based superalloy that has the basic chemical composition of Incoloy 800 but with controlled element chemistry so as to have significantly higher creep-rupture strength.
This high-temperature annealing provides enhanced strength to Alloy 800H Flanges, making them suitable for demanding industries like processing of chemicals and petrochemicals, industrial furnaces, heat-treating equipment, and fabrication of superheater and reheater tubing of power plants.
Properties of Incoloy 800HT Flanges
Flanges made from Incoloy 800HT are widely known for their excellent thermal properties, high resistance to corrosion, and mechanical strength. Below are some key features of this material:
High-Temperature Strength: Incoloy 800HT maintains its strength and structural integrity at temperatures ranging between 700°C to 1100°C, making it suitable for high-heat environments.
Oxidation and Corrosion Resistance: This alloy provides excellent resistance to oxidation, sulfidation, and carburization, even in the presence of fluctuating temperatures and corrosive environments.
Creep and Stress Rupture Resistance: Incoloy 800HT exhibits remarkable resistance to creep deformation and stress rupture, making it suitable for long-term applications in extreme conditions.
Enhanced Metallurgical Stability: With its balanced chemical composition, Incoloy 800HT is designed for superior stability, reducing the risk of embrittlement at high temperatures.
Applications of Incoloy 800HT Flanges
Due to its exceptional mechanical properties and high-temperature stability, Incoloy 800HT flanges are widely used in a variety of industrial applications. Some common industries and uses include:
Petrochemical and Refining: Incoloy 800HT flanges are ideal for heat exchangers, reactors, and piping systems in chemical processing and refining due to their resistance to chemical corrosion and high temperatures.
Power Generation: In power plants, particularly those using fossil fuels, Incoloy 800HT flanges are used in boiler components, heat exchangers, and gas turbines due to their ability to withstand high heat and pressure.
Heat Treating Equipment: Furnaces, radiant tubes, and other heat-treating equipment benefit from the alloy's high-temperature resistance, making Incoloy 800HT flanges suitable for this application.
Nuclear Engineering: Withstanding harsh environmental conditions and high radiation exposure, these flanges are commonly used in nuclear reactors, especially in high-temperature, high-pressure systems.
Aerospace: The aerospace industry often requires materials that maintain structural integrity at extreme temperatures. Incoloy 800HT flanges are a reliable choice for jet engines, exhaust systems, and high-temperature ducting.
INCOLOY 800HT ANSI B16.5 / B16.47 FLANGES SPECIFICATION:
Standard: ASTM, ASME, ANSI, JIS, DIN, BSNA 11, EN Ni 99.2, JIS NW 2200, GOST-НП-2
Dimensions: ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Designation: ASTM / ASME B 564 / SB 564
Class: Class 150, Class 300, Class 400, Class 600, Class 900, Class 1500 & Class 2500
Size: 1/2″NB TO 60″NB
Grades: Incoloy 800 (UNS N08800) Flanges, 2.4876
Pressure: DIN PN6, PN10, PN16, PN25, PN40, PN64, PN100, PN160
Conclusion
Incoloy 800HT flanges offer a perfect balance of high-temperature stability, corrosion resistance, and mechanical strength. They are a superior choice for applications in industries like petrochemical processing, power generation, and aerospace, where extreme conditions are the norm. With their exceptional performance and long-lasting durability, Incoloy 800HT flanges ensure operational efficiency and safety in critical environments.
Choosing the right material for flanges can significantly improve the lifespan and reliability of piping systems. By opting for Incoloy 800HT, industries can achieve the perfect blend of strength, durability, and cost-efficiency in high-temperature applications.













