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Nickel Alloy 825/ Incoloy 825®
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 localised attack such as pitting and crevice corrosion. Alloy 825 is especially resistant to sulphuric and phosphoric acid. Alloy 825 is used for chemical processing, pollution control equipment, oil and gas well piping, nuclear fuel reprocessing, acid production and pickling equipment and handling of radioactive wastes.
| 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 |
Availability
Alloy 825 is available in Sheet, Plate, Strip, Pipe, Tube, Rod, Round Bar, Flat Bar, Hexagon, Wire and Forging Stock. View Stock List, Plate Stock List or contact Sales for further availability.
Specifications
UNS N08825
WS 2.458
FMC Spec M41104, M40116, M40154
NACE MR-0175/ISO 15156
Alloy 825 Sheet, Strip and Plate
BS3072 NA16
BS 3073 NA16
ASTM B 424
ASTM B 906
ASME SB 424
ASME SB 906
DIN 17750
VdTUV 432
Alloy 825 Pipe and Tube
BS 3074 NA16
ASTM B163, ASME SB 163
ASTM B 423, ASME SB 423
ASTM B704, ASME SB 704
ASTM B 705, ASME SB 705
ASTM B 751, ASME SB 751
ASTM B 755, ASME SB 755
ASTM B 829, ASME SB 829
DIN 17751, VdTUV 432
Alloy 825 Rod, Bars, Forgings
BS 3076 NA16
ASTM B 425
ASTM B 564
ASME SB 425
ASME SB 564
ASME Code Case N-572
DIN 17752, DIN 17753, DIN 17754
VdTUV 432
Other Similar Specifications
ASTM B366
ASME SB 366
DIN 17744
