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The Incoloy 825 has excellent resistance to stress corrosion cracking and to pitting and crevice corrosion. In addition, incoloy 825 tubing pressure rating is especially resistant to reducing and oxidizing acids such as sulfuric acid, phosphoric acid and nitric acid, to organic acid, to alkalis including NaOH and KOH, and to hydrochloric acid.
The resistance of inconel 825 properties to general and localized corrosion under diverse environments gives it unexpected usefulness. Applications include chemical processing and pollution control equipment, oil and gas well pipe, nuclear fuel recovery and pickling operation facilities.
Specification of Incoloy 825 Nickel Alloy
|
UNS |
W. Nr |
|
N08825 |
2.4858 |
Chemical Compositions
|
Composition |
Ni |
Cr |
Fe |
C |
Mn |
Si |
Cu |
Mo |
Al |
Ti |
P |
S |
|
|
Content(%) |
Min. |
38 |
19.5 |
Bal. |
|
|
|
1.5 |
2.5 |
|
0.6 |
|
|
|
Max. |
46 |
23.5 |
0.05 |
1 |
0.5 |
3 |
3.5 |
0.2 |
1.2 |
0.03 |
0.03 |
||
Mechanical Properties (Minimum value at 20℃)
|
Tensile Strength (σb/MPa) |
Yield Strength (σp0.2/MPa) |
Elongation (σ5/%) |
|
550 |
220 |
30 |
Product Forms and Standards
|
Bar |
Forging |
Sheet/Strip |
Wire |
Pipe |
|
ASTM B408 |
ASTM B564 |
ASTM B409 |
ASTM B408 |
ASTM B407 ASTM B514 |
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