The chemical composition of UNS N08825（Incoloy 825）
Tech Center 2025-08-02 2
Incoloy 825 alloy is a nickel-iron-chromium alloy with added molybdenum, copper and titanium. Designed to offer excellent resistance to many corrosive environments. The nickel content is sufficient to resist chloride ion stress corrosion cracking. The combination of nickel with molybdenum and copper also provides excellent resistance to reducing environments, such as those containing sulfuric acid and phosphoric acid. Molybdenum also helps resist pitting and crevice corrosion. The chromium content of this alloy makes it resistant to various oxidizing substances such as nitric acid, nitrates and oxide salts. The addition of titanium, after appropriate heat treatment, can stabilize the alloy and prevent sensitization to intergranular corrosion.
The density of this alloy is ρ=8.14g/cm³.
