Alloy 825 (UNS N08825) is a nickel chromium alloy with molybdenum added, as well as copper. It has excellent resistance to reducing and oxidizing acids, stress corrosion cracking, and local corrosion, such as pitting and crevice corrosion.
Alloy 825 is especially suitable for resistance to sulfuric acid and phosphoric acid.
It has good ductility and can be easily formed by all conventional methods.
Chemical composition:
|
% |
Ni |
Fe |
Cr |
C |
Mn |
Si |
S |
Mo |
Cu |
Ti |
Al |
% |
|
min |
38.0 |
22.0 |
19.5 |
2.5 |
1.5 |
0.60 |
min |
|||||
|
max |
46.0 |
23.5 |
0.05 |
1.00 |
0.50 |
0.030 |
3.5 |
3.0 |
1.20 |
0.20 |
max |
Physical properties :
|
Density |
8.14 g/cm3 |
|
Melting range |
1370-1400℃ |
Application:
Fuel element dissolver
Offshore product pipeline system
Heat exchanger, evaporator, scrubber, impregnation tube, etc
petroleum industry
Chemistry and food processing
Flame retardant alloys for high pressure oxygen applications
From
|
UNS |
Alloy |
Scope (mm) |
|||
|
Seamless pipe &tube |
Welded pipe & tube |
Fitting/ Flange |
Sheet, Plate, Strip |
||
|
UNS N08825 |
ALLOY 825 |
OD: 6.35-508mm WT: 1.65-20mm L: 0-12000mm |
OD: 17.1-914.4mm WT: 1-36mm L: <12000MM |
DN15-DN600 | Plate: WT<6mm, WDT<1200mm, L<3000mm; WT>6mm, WDT<2800mm, L<8000mm Coil: WT: 0.15-3mm WDT:<1000mm |
