WL Incoloy 800

Incoloy 800 (UNS N08800) is a  nickel-chromium alloy with good strength and excellent resistance to oxidation and carburization in high-temperature atmospheres. It also resists corrosion by many aqueous environments. The alloy maintains a stable, austenitic structure during prolonged exposure to high temperatures. Used for process piping, heat exchangers, carburizing equipment, heatingelement sheathing, and nuclear steam-generator tubing.

For services below 600 °C the use of soft annealed Incoloy 800 is suggested. Incoloy 800 has applications in furnace components and equipment, petrochemical furnace cracker tubes, pigtails and headers, and sheathing for electrical heating element.

Incoloy 800, like many austenitic stainless steels, can be sensitized, or made susceptible to intergranular attack in some aggressive media, by exposure to the temperature range of (540-760°C).