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G-X 20 CrCoMoV 12 2 1

Germany DIN G-X20CrCoMoV1221 High-temperature resisting CrCoMo steel and Mechanical Properties, Chemical Element, Cross Reference.

Category Grade Standard Region/Area Standard Content
Metals G-X 20 CrCoMoV 12 2 1 -- Germany High-temperature resisting CrCoMo steel

Chemical composition(mass fraction)(wt.%) of the G-X 20 CrCoMoV 12 2 1

Element Min Max Similar
V 0.2500 0.3500 -
Si 0.8000 1.0000 -
S - 0.0300 -
P - 0.0300 -
Mo 0.7000 0.9000 -
Mn 0.9000 1.1000 -
Cr 12.0000 12.6000 -
Co 1.9000 2.2000 -
C 0.1800 0.2300 -

Mechanical Properties of steel grade G-X 20 CrCoMoV 12 2 1

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)
138 (≥) 978 (≥) 14 32 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 414

Physical Properties of steel grade G-X 20 CrCoMoV 12 2 1

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
34 - -     0.11 -  
773 397 - 12.3 434   -  
585 - 32 24.2   132 243

Heat Treatment of steel grade G-X 20 CrCoMoV 12 2 1

Heat treated : 1849°C - 1346°C

Technological Curves of steel grade G-X 20 CrCoMoV 12 2 1

Cross Reference Table (Equivalent Grade) of G-X 20 CrCoMoV 12 2 1

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