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X1NiCrMoCuN25-20-7 – Austentitic Stainless Steel

X1NiCrMoCuN25-20-7 is an austentitic Stainless steel that provides an extremely high resistance to corrosion within chlorine heavy environments.




Element Min Max
C (Carbon) 0.02%
Cr (Chromium) 19% 21%
Cu (Copper) 0.5% 1.5%
Mn (Manganese) 1%
Mo (Molybdenum) 6% 7%
N (Nitrogen) 0.15% 0.25%
Ni (Nickel) 24% 26%
P (Phosphorus) 0.03%
S (Sulphur) 0.01%
Si (Silicon) 0.5%
Mechanical Properties Min Max
Ultimate Tensile Strength (UTS) 600 MPa 800 Mpa
0.2% Proof Stress 300 MPa
Elongation 40%
Charpy V-Notch Impact = Room Temp. 120 Joules


Commonly used within the offshore, petrochemical, sewage treatment, mineral exploitation, Power, Paper and pulp industries. Typical applications, include but are not limited to; pipes, fittings, flanges, tubes etc.

Information is given for illustrative purposes only. Tachart accepts no responsibility for the accuracy of the data contained within or the use of the data by any other party.
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