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40Cr2MoVA

China GB 40Cr2MoVA 涡轮机高温螺栓用钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 40Cr2MoVA / 40Cr2MoVA
Category Grade Standard Region/Area Standard Content
Metals 40Cr2MoVA GB/T 20410 China 涡轮机高温螺栓用钢

Chemical composition(mass fraction)(wt.%) of the 40Cr2MoVA

Element Min Max Similar
Cu - 0.2500 -
V 0.1500 0.2500 -
Mo 0.3000 0.4000 -
Cr 1.6000 1.9000 -
Ni - 0.3000 -
S - 0.0250 -
P - 0.0250 -
Mn 0.5000 0.8000 -
Si 0.1700 0.3700 -
C 0.3700 0.4500 -

Mechanical Properties of steel grade 40Cr2MoVA

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)
448 (≥) 832 (≥) 11 42 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 132

Physical Properties of steel grade 40Cr2MoVA

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
43 - -     0.22 -  
919 828 - 41.3 131   -  
332 - 31 13.2   321 313

Heat Treatment of steel grade 40Cr2MoVA

Heat treated : 1958°C - 1846°C

Technological Curves of steel grade 40Cr2MoVA

Cross Reference Table (Equivalent Grade) of 40Cr2MoVA

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