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GX 2 CrNiMoCuN 25 6 3 3

Germany DIN GX2CrNiMoCuN25633 Corrosion resistant steel castings and Mechanical Properties, Chemical Element, Cross Reference.

Category Grade Standard Region/Area Standard Content
Metals GX 2 CrNiMoCuN 25 6 3 3 DIN EN 10283 Germany Corrosion resistant steel castings

Chemical composition(mass fraction)(wt.%) of the GX 2 CrNiMoCuN 25 6 3 3

Element Min Max Similar
W - 1.0000 -
Si - 1.0000 -
S - 0.0250 -
P - 0.0350 -
Ni 5.0000 7.0000 -
N 0.1200 0.2200 -
Mo 2.5000 3.5000 -
Mn - 1.5000 -
Cu 2.7500 3.5000 -
Cr 24.5000 26.5000 -
C - 0.0300 -
Si - 1.0000 -
S - 0.0250 -
P - 0.0350 -
Ni 5.0000 7.0000 -
N 0.1200 0.2200 -
Mo 2.5000 3.5000 -
Mn - 1.5000 -
Cu 2.7500 3.5000 -
Cr 24.5000 26.5000 -
C - 0.0300 -

Mechanical Properties of steel grade GX 2 CrNiMoCuN 25 6 3 3

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
367 (≥) 742 (≥) 22 42 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 121

Physical Properties of steel grade GX 2 CrNiMoCuN 25 6 3 3

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
24 - -     0.41 -  
643 348 - 12.3 124   -  
857 - 42 23.2   141 324

Heat Treatment of steel grade GX 2 CrNiMoCuN 25 6 3 3

Heat treated : 1872°C - 1794°C

Technological Curves of steel grade GX 2 CrNiMoCuN 25 6 3 3

Cross Reference Table (Equivalent Grade) of GX 2 CrNiMoCuN 25 6 3 3

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