Incoloy800 (UNS N08800/W.Nr.1.4876) is a widely used material for constructing equipment requiring corrosion resistance, heat resistance, strength, and stability, with service temperatures up to 1500°F (816℃). The 800 alloy demonstrates general corrosion resistance in many aqueous media and resists stress corrosion cracking due to its nickel content. At high temperatures, it resists oxidation, carburization, and sulfidation while maintaining fracture and creep strength. For applications requiring enhanced stress crack resistance and creep resistance, particularly at temperatures above 1500°°F (816℃), Incoloy alloys 800H and 800HT are employed.
Incoloy800 alloy is used in various applications involving exposure to corrosive environments and high temperatures. It is employed in heat treatment equipment such as baskets, trays, and fixtures. In chemical and petrochemical processing, the alloy is utilized in heat exchangers and other piping systems within nitric acid environments, particularly where resistance to chlorine stress corrosion cracking is required. In nuclear power plants, it serves as a component in steam generator tubes. The alloy is commonly used for insulation sleeves in electric heating elements of household appliances. In pulp production, the digester-liquid heater is typically constructed from this alloy.
The density of the alloy is ρ=7.94g/cm³.
