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Japan JIS CR4 冷压缩钢板和钢带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: CR4 / CR4
Category Grade Standard Region/Area Standard Content
Metals CR4 JIS G3141 Japan 冷压缩钢板和钢带

Chemical composition(mass fraction)(wt.%) of the CR4

Element Min Max Similar
S - 0.0300 -
P - 0.0300 -
Mn - 0.4500 -
C - 0.0800 -

Mechanical Properties of steel grade CR4

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)
968 (≥) 381 (≥) 22 34 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 142

Physical Properties of steel grade CR4

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
31 - -     0.34 -  
993 269 - 42.3 232   -  
294 - 14 11.2   434 233

Heat Treatment of steel grade CR4

Heat treated : 1758°C - 1786°C

Technological Curves of steel grade CR4

Cross Reference Table (Equivalent Grade) of CR4

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