Alloy 825 (UNSN08825)
Werkstoff 2.4858


Alloy 825 is a nickel-iron-chromium alloy to which molybdenum, copper and titanium have been added to. The combination of its chemical and mechanical properties is engineered to provide exceptional corrosion resistance in both oxidizing and reducing environments. 

Chemical Analysis:
Typical Values (Weight %)

Ni 38,0-46,0
Cr 19,5-23,5
Mo 2,5-3,5
Fe  22,0 min
Cu 1,5-3,0
Mn  0,0-1,0 
Ti 0,6-1,2
Si 0,0-0,5 
Al 0,0-0,2
Sulphur 0,0-0.03
Carbon 0,0-0.05

Mechanical Properties:
    Yield strength 0.2%   35  ksi
    Tensile strength           85  ksi 
Elongation at break      30 %

Resistence to corrosion, aqueous corrosion, oxidising, reducing, stress
corrosion cracking, pitting and crevice corrosion, sulphuric and phosphoric

Commonly Uses:
Chemical processing, pollution control equipment, oil & gas piping, nuclear
fuel reprocessing, pickling equipment, acid processing.

Density: 8.14 gm/cm3


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