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30W4Cr2VA

China GB 30W4Cr2VA 弹簧钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 30W4Cr2VA / 30W4Cr2VA
Category Grade Standard Region/Area Standard Content
Metals 30W4Cr2VA GB/T 1222 China 弹簧钢

Chemical composition(mass fraction)(wt.%) of the 30W4Cr2VA

Element Min Max Similar
W 4.0000 4.5000 -
Cu - 0.2500 -
V 0.5000 0.8000 -
Ni - 0.3500 -
Cr 2.0000 2.5000 -
P - 0.0300 -
S - 0.0300 -
Mn - 0.4000 -
Si 0.1700 0.3700 -
C 0.2600 0.3400 -

Mechanical Properties of steel grade 30W4Cr2VA

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)
682 (≥) 176 (≥) 14 44 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 123

Physical Properties of steel grade 30W4Cr2VA

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
13 - -     0.11 -  
135 118 - 31.3 222   -  
695 - 21 23.2   241 143

Heat Treatment of steel grade 30W4Cr2VA

Heat treated : 1475°C - 1198°C

Technological Curves of steel grade 30W4Cr2VA

Cross Reference Table (Equivalent Grade) of 30W4Cr2VA

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