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GX25CrNiSi18-9

Germany DIN GX25CrNiSi18-9 Heat resistant steel castings and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: GX25CrNiSi18-9 / GX25CrNiSi18-9
Category Grade Standard Region/Area Standard Content
Metals GX25CrNiSi18-9 DIN EN 10295 Germany Heat resistant steel castings

Chemical composition(mass fraction)(wt.%) of the GX25CrNiSi18-9

Element Min Max Similar
Si 0.5000 2.5000 -
S - 0.0300 -
P - 0.0400 -
Ni 8.0000 10.0000 -
Mo - 0.5000 -
Mn - 2.0000 -
Cr 17.0000 19.0000 -
C 0.1500 0.3500 -

Mechanical Properties of steel grade GX25CrNiSi18-9

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)
813 (≥) 655 (≥) 11 41 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 223

Physical Properties of steel grade GX25CrNiSi18-9

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
42 - -     0.11 -  
567 652 - 12.3 114   -  
494 - 24 13.2   242 231

Heat Treatment of steel grade GX25CrNiSi18-9

Heat treated : 1782°C - 1768°C

Technological Curves of steel grade GX25CrNiSi18-9

Cross Reference Table (Equivalent Grade) of GX25CrNiSi18-9

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