Alloy 825

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.

rhtth

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