A nickel-iron-chromium alloy with additions of molybdenum and copper. It has excellent resistance to both reducing and oxidizing acids, to stress-corrosion cracking, and to localized attack such as pitting and crevice corrosion. The alloy is especially resistant to sulfuric and phosphoric acids. Used for chemical processing, pollution-control equipment, oil and gas well piping, nuclear fuel reprocessing, acid production, and pickling equipment.

UNS: N08825
W.Nr.: 2.4858

Technical Bulletin (PDF, 78KB)

Available Product Forms: Pipe, tube, sheet, strip, plate, round bar, flat bar, forging stock, hexagon and wire

Technical Papers
High-Performance Age-Hardenable Nickel Alloys Solve Problems in Sour Oil and Gas Service (PDF, 168KB)

Performance of Commercial Alloys in Simulated Waste Incineration Environments (PDF, 1.2MB)

Nickel Alloys and Welding Products for Polythionic Acid and Chloride Containing Refinery Environments (PDF,395KB )

Precipitation Reactions and Corrosion Resistance of Thermally Aged and Welded Alloy 825 (PDF,2.5MB )

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