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W7Mo4Cr4V2Co5

China GB W7Mo4Cr4V2Co5 高速工具钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: W7Mo4Cr4V2Co5 / W7Mo4Cr4V2Co5
Category Grade Standard Region/Area Standard Content
Metals W7Mo4Cr4V2Co5 GB/T 9943 China 高速工具钢

Chemical composition(mass fraction)(wt.%) of the W7Mo4Cr4V2Co5

Element Min Max Similar
C 1.0500 1.1500 -
Si 0.1500 0.5000 -
Mn 0.2000 0.6000 -
S - 0.0300 -
P - 0.0300 -
Cr 3.7500 4.5000 -
Mo 3.2500 4.2500 -
V 1.7500 2.2500 -
W 6.2500 7.0000 -
Co 4.7500 5.7500 -

Mechanical Properties of steel grade W7Mo4Cr4V2Co5

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)
265 (≥) 157 (≥) 21 12 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 224

Physical Properties of steel grade W7Mo4Cr4V2Co5

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 - -     0.43 -  
639 856 - 22.3 121   -  
188 - 14 42.2   211 143

Heat Treatment of steel grade W7Mo4Cr4V2Co5

Heat treated : 1957°C - 1923°C

Technological Curves of steel grade W7Mo4Cr4V2Co5

Cross Reference Table (Equivalent Grade) of W7Mo4Cr4V2Co5

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