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Alloy 925 (UNS N09925)

 

Alloy 925 is a precipitation hardened nickel-iron-chromium alloy which combines high strength and excellent corrosion resistance. The grade has a high content of nickel making it resistant to chloride ion stress-corrosion cracking.

Chemical Analysis:
Typical Values (Weight %)
C 0,0-0,03
Si 0,0-0,05
Mn 0,0-1,0
P 0,0-0,030
S 0,0-0,030
Cr 19,5-22,5
Mn 0,0-1,0
Ti 0,6-1,2
Si 0,0-0,5
Al 0,0-0,2
Sulphur0,0-0.03

Mechanical Properties:
    Yield strength 0.2%   110  ksi
    Tensile strength           140  ksi 
Elongation at break      20 %
          

Features:
Resists oxidising and reducing, chlorine ion stress corrosion cracking, pitting
and crevice cracking
High strength

Commonly Uses:
Valves, hangers, packers, tubulars, landing nipples, sour gas environments

Density: 8.05 gm/cm3

 

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