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HS 7-6-3-12

France AFNOR NF HS7-6-3-12 工具钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: HS7-6-3-12 / HS 7-6-3-12
Category Grade Standard Region/Area Standard Content
Metals HS 7-6-3-12 NF A35-590 France 工具钢

Chemical composition(mass fraction)(wt.%) of the HS 7-6-3-12

Element Min Max Similar
W 6.7500 7.7500 -
V 3.0000 3.5000 -
Si - 0.5000 -
S - 0.0300 -
P - 0.0300 -
Mo 6.0000 6.5000 -
Mn - 0.4000 -
Cr 3.5000 4.5000 -
Co 11.2500 12.2500 -
C 1.2000 1.3500 -

Mechanical Properties of steel grade HS 7-6-3-12

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)
722 (≥) 347 (≥) 42 13 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 214

Physical Properties of steel grade HS 7-6-3-12

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
32 - -     0.24 -  
195 816 - 14.3 121   -  
726 - 13 32.2   222 414

Heat Treatment of steel grade HS 7-6-3-12

Heat treated : 1747°C - 1721°C

Technological Curves of steel grade HS 7-6-3-12

Cross Reference Table (Equivalent Grade) of HS 7-6-3-12

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