Nickel Super Alloy 825 (Wst 2.4858)
Technical Data Sheet
Alloy 825 is 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 localise attack such as pitting and crevice corrosion. The alloy are especially resistant to sulphuric and phosphoric acid. Used for chemical processing, pollution control equipment, oil and gas well piping, nuclear fuel reprocessing, acid production and pickling equipment.
| Chemical Composition Limits | |||||||||||
| Weight % | Ni | Fe | Cr | Mo | Cu | Ti | C | Mn | S | Si | Al |
| Alloy 825 | 38 - 46 | 22 min | 19.5 - 23.5 | 2.5 - 3.5 | 1.5 - 3 | 0.6 - 1.2 | 0.05 max | 1 max | 0.03 max | 0.5 max | 0.2 max |
Typical Mechanical Properties
| Material | Form and Condition | Tensile Strength MPa | Yield Strength (0.2% Offset) MPa | Elongation (%) |
| Alloy 825 Tube | Annealed | 772 | 441 | 36 |
| Alloy 825 Tube | Cold Drawn | 1000 | 889 | 15 |
| Alloy 825 Bar | Annealed | 690 | 324 | 45 |
| Alloy 825 Plate | Annealed | 662 | 338 | 45 |
| Alloy 825 Sheet | Annealed | 758 | 421 | 39 |
BACK TO MAIN NICKEL ALLOY 825 DATA PAGE
Availability
Alloy 825 is available in Instrument tube, Precision tube and Hydraulic tube. Alloy 825 can also be supplied in Coiled Tube with a seamless and welded execution. Contact Sales for further availability.
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Disclaimer
Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.
