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GX30CrNiSiNb24-24

Germany SEW GX30CrNiSiNb24-24 Cast steel for crude oil and natural gas installations and Mechanical Properties, Chemical Element, Cross Reference.

Category Grade Standard Region/Area Standard Content
Metals GX30CrNiSiNb24-24 SEW 595 Germany Cast steel for crude oil and natural gas installations

Chemical composition(mass fraction)(wt.%) of the GX30CrNiSiNb24-24

Element Min Max Similar
Si 0.5000 2.0000 -
S - 0.0300 -
P - 0.0450 -
Ni 23.0000 25.0000 -
Nb 1.0000 2.0000 -
Mn 0.5000 1.5000 -
Cr 23.0000 25.0000 -
C 0.2500 0.4000 -

Mechanical Properties of steel grade GX30CrNiSiNb24-24

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)
796 (≥) 928 (≥) 12 21 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 234

Physical Properties of steel grade GX30CrNiSiNb24-24

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
32 - -     0.24 -  
177 813 - 14.3 333   -  
951 - 34 11.2   344 221

Heat Treatment of steel grade GX30CrNiSiNb24-24

Heat treated : 1946°C - 1691°C

Technological Curves of steel grade GX30CrNiSiNb24-24

Cross Reference Table (Equivalent Grade) of GX30CrNiSiNb24-24

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