Sayam Nickel Alloys is a reliable manufacturer and supplier of premium Incoloy 800, 800H, and 800HT flanges based in Hyderabad, India. We supply flanges engineered for excellent strength, oxidation resistance, and performance at elevated temperatures. Manufactured using high-quality raw materials and advanced forging and machining processes, our Incoloy flanges meet international standards and deliver long service life in demanding industrial environments. Widely used in petrochemical, power generation, chemical processing, and heat treatment industries, Sayam Nickel Alloys focuses on precision, durability, strict quality control, and timely delivery.
Specifications : ASTM B 564 / ASME SB 564
Dimensions : ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
Standards : ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges etc.
Size : 1/2″ to 36″
Pressure Rating : Class 150, Class 300, Class 400, Class 600, Class 900, Class1500, Class 2500 | PN6, PN10, PN16, PN25, PN40, PN64 etc.
Flange Face Type : Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
| C | Mn | Si | S | Cu | Fe | Ni | Cr | Al | Ti | |
| Incoloy | 0.10 max | 1.50 max | 1.00 max | 0.015 max | 0.75 max | 39.50 min | 30.00 – 35.00 | 19.00 – 23.00 | 0.15 – 0.60 | 0.15 – 0.60 |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation | |
| Incoloy Flanges | 7.94 g/cm3 | 1385 °C (2525 °F) | Psi – 75,000 , MPa – 520 | Psi – 30,000 , MPa – 205 | 30 % |
Incoloy 800 series alloys are nickel-iron-chromium materials designed for high-temperature strength and oxidation resistance. Nickel provides excellent resistance to stress corrosion cracking, while chromium enhances oxidation and carburization resistance. Incoloy 800H and 800HT contain controlled carbon levels and aluminum and titanium additions for improved creep rupture strength at elevated temperatures. These alloys exhibit good tensile and yield strength, excellent ductility, and structural stability, maintaining mechanical integrity under prolonged exposure to high heat and pressure.
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Incoloy 800, 800H, and 800HT flanges are widely used in high-temperature and high-pressure service applications. Common uses include heat exchangers, furnace components, petrochemical processing units, and power generation systems. These flanges are also employed in chemical plants, ammonia reformers, hydrocarbon processing, and thermal treatment equipment. Due to their excellent resistance to oxidation, carburization, and thermal fatigue, Incoloy 800 series flanges are ideal for piping systems and pressure vessels operating in extreme environments where strength, reliability, and long service life are critical.
