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Japan JIS 20MnCr5 高碳鉻軸承鋼鋼料 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 20MnCr5 / 20MnCr5
Category Grade Standard Region/Area Standard Content
Metals 20MnCr5 JIS G4805 Japan 高碳鉻軸承鋼鋼料

Chemical composition(mass fraction)(wt.%) of the 20MnCr5

Element Min Max Similar
Si 0.1500 0.4000 -
S - 0.0350 -
P - 0.0350 -
Mn 1.1000 1.4000 -
Cr 1.0000 1.3000 -
C 0.1700 0.2300 -
Si 0.1500 0.4000 -
S - 0.0350 -
P - 0.0350 -
Mn 1.1000 1.4000 -
Cr 1.0000 1.3000 -
C 0.1700 0.2300 -

Mechanical Properties of steel grade 20MnCr5

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)
734 (≥) 621 (≥) 11 43 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 112

Physical Properties of steel grade 20MnCr5

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
14 - -     0.41 -  
965 118 - 33.3 112   -  
952 - 24 42.2   423 112

Heat Treatment of steel grade 20MnCr5

Heat treated : 1851°C - 1422°C

Technological Curves of steel grade 20MnCr5

Cross Reference Table (Equivalent Grade) of 20MnCr5

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