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Japan JIS 20Cr3 高碳鉻軸承鋼鋼料 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 20Cr3 / 20Cr3
Category Grade Standard Region/Area Standard Content
Metals 20Cr3 JIS G4805 Japan 高碳鉻軸承鋼鋼料

Chemical composition(mass fraction)(wt.%) of the 20Cr3

Element Min Max Similar

Mechanical Properties of steel grade 20Cr3

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)
549 (≥) 874 (≥) 31 11 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 213

Physical Properties of steel grade 20Cr3

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
42 - -     0.44 -  
895 426 - 11.3 123   -  
353 - 42 12.2   412 143

Heat Treatment of steel grade 20Cr3

Heat treated : 1621°C - 1631°C

Technological Curves of steel grade 20Cr3

Cross Reference Table (Equivalent Grade) of 20Cr3

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