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China GB 40CrVA 优质结构钢冷拉钢材 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 40CrVA / 40CrVA
Category Grade Standard Region/Area Standard Content
Metals 40CrVA GB/T 3078 China 优质结构钢冷拉钢材

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

Element Min Max Similar
C 0.3700 0.4500 -
Mn 0.5000 0.8000 -
Si 0.1700 0.3700 -
Ni - 0.4000 -
Cr 0.8000 1.1000 -
V 0.1000 0.2000 -
C 0.3700 0.4400 -
Mn 0.5000 0.8000 -
P - 0.0250 -
S - 0.0250 -
Si 0.1700 0.3700 -
Ni - 0.3000 -
Cr 0.8000 1.1000 -
Mo - 0.1000 -
Cu - 0.2500 -
V 0.1000 0.2000 -

Mechanical Properties of steel grade 40CrVA

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)
643 (≥) 462 (≥) 41 34 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 114

Physical Properties of steel grade 40CrVA

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
23 - -     0.13 -  
632 618 - 43.3 144   -  
144 - 24 24.2   441 444

Heat Treatment of steel grade 40CrVA

Heat treated : 1191°C - 1781°C

Technological Curves of steel grade 40CrVA

Cross Reference Table (Equivalent Grade) of 40CrVA

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