Alloy 825

(UNS N08825)

A nickel – chromium-molybdenum alloy with additions of molybdenum, copper, and titanium, The alloy is exceptionally resistant to chloride-ion stress corrosion cracking. The alloy has outstanding resistance to reducing environments such as those containing sulfuric and phosphoric acids.

Other common trade names are Inconel 825 and Nicrofer 4221

Compositions

Ni
Fe
Cr
MO
Cu
C
Mn
Si
S
Ti
38.0-46.022.0 min19.5-23.52.5-3.51.5-3.00.025 Max1.0 max0.5 max0.3 max0.6-1.2

Specifications

Sheet / Bar / Pipe

Country
Code
Plate
Billet
Tube
Fittings
Forgings
UK BS
NA16
3072
3076
USA
UNS


NO8825B424
B425
B423
B366
B425
GermanyDin 2.4858
17750
17752
17751
17754