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7Cr7Mo2V2Si

China GB 7Cr7Mo2V2Si 工模具钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 7Cr7Mo2V2Si / 7Cr7Mo2V2Si
Category Grade Standard Region/Area Standard Content
Metals 7Cr7Mo2V2Si GB/T 1299 China 工模具钢

Chemical composition(mass fraction)(wt.%) of the 7Cr7Mo2V2Si

Element Min Max Similar
Ni - 0.2500 -
Cu - 0.2500 -
S - 0.0200 -
P - 0.0300 -
V 1.8000 2.2000 -
Mo 1.9000 2.3000 -
Cr 6.5000 7.5000 -
Mn - 0.4000 -
Si 0.7000 1.2000 -
C 0.6800 0.7800 -

Mechanical Properties of steel grade 7Cr7Mo2V2Si

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)
849 (≥) 426 (≥) 12 44 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 334

Physical Properties of steel grade 7Cr7Mo2V2Si

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 - -     0.14 -  
133 443 - 34.3 211   -  
249 - 43 11.2   423 423

Heat Treatment of steel grade 7Cr7Mo2V2Si

Heat treated : 1734°C - 1137°C

Technological Curves of steel grade 7Cr7Mo2V2Si

Cross Reference Table (Equivalent Grade) of 7Cr7Mo2V2Si

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