UNS N08825

This is a nickel – iron – chromium alloy with additions of molybdenum and copper. It has excellent resistance to both reducing and oxidizing acids, to stress cracking, and to localized attack such as pitting and crevice corrosion. Incoloy 825 is especially resistant to sulfuric and phosphoric acids. Often used in chemical processing, pollution-control equipment, oil and gas well piping, nuclear processing, acid production and pickling equipment.

Incoloy® 825 Fact Sheet

Composition[Ni 38-46%, Cr 19.5-23.5%, Fe 22% min, Mo 2.5-3.5%, Cu 1.5-3%]
SpecificationsASTM B425
Density0.294 lbs/in³
Tensile Strength115 Kpsi*
Melt2525° F
Max. Operating Temperature1900-2000° F

* Tensile strength and elongation are for annealed 0.012″ wire diameter. Please note that material performance data is provided a reference guide only… There are many factors involved in wire cloth performance, so please consult with an experienced engineer before choosing the metal best suited for your unique needs!


Incoloy is a registered trademark name of Inco Companies.