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100CrMo7-4

Japan JIS 100CrMo7-4 高碳鉻軸承鋼鋼料 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 100CrMo7-4 / 100CrMo7-4
Category Grade Standard Region/Area Standard Content
Metals 100CrMo7-4 JIS G4805 Japan 高碳鉻軸承鋼鋼料

Chemical composition(mass fraction)(wt.%) of the 100CrMo7-4

Element Min Max Similar
Si 0.1500 0.3500 -
S - 0.0150 -
P - 0.0250 -
O - 0.0015 -
Mo 0.4000 0.5000 -
Mn 0.6000 0.8000 -
Cr 1.6500 1.9500 -
C 0.9300 1.0500 -

Mechanical Properties of steel grade 100CrMo7-4

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)
119 (≥) 623 (≥) 24 21 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 433

Physical Properties of steel grade 100CrMo7-4

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
12 - -     0.14 -  
426 323 - 22.3 443   -  
976 - 31 32.2   414 414

Heat Treatment of steel grade 100CrMo7-4

Heat treated : 1479°C - 1445°C

Technological Curves of steel grade 100CrMo7-4

Cross Reference Table (Equivalent Grade) of 100CrMo7-4

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