Standard Grade |
Trade Name |
UNS No. |
DIN |
BS |
JIS |
French Specs |
INCOLOY 825 |
UNS N08825 |
WS 2.4858 |
NA16 |
- |
- |
|
Specification |
BS3072 NA16, BS 3073 NA16, ASTM B 424, ASTM B 906, ASME SB 424, ASME SB 906, DIN 17750, VdTUV 432 |
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Typical use
|
Incoloy 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. |
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Density |
8.14 g/cm3 |
Chemical Composition Limits |
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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 |
Material |
Form and Condition |
Tensile Strength MPa |
Yield Strength (0.2% Offset) MPa |
Elongation (%) |
Alloy 825 Plate |
Annealed |
662 |
338 |
45 |
Alloy 825 Sheet |
Annealed |
758 |
421 |
39 |