Alloy 825 (UNS N08825) is a nickel-iron-chromium alloy with additions of molybdenum and copper. It has excellent resistance to both reducing and oxidizing acids, 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 piping, nuclear fuel reprocessing, acid production, and pickling equipment.
Mechanical Properties
| Common Name | Minimum Values | |||
| UTS (ksi) | YS (ksi) | EI (%) | Ra(%) | |
| Alloy 825 | 85 | 35 | 30 | --- |
Material Specifications
ASTM B425 Rod (Bar)
ASTM B424 Sheet, Strip, Plate
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