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China GB 4Cr3NiMo 锻钢冷轧辊辊坯 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 4Cr3NiMo / 4Cr3NiMo
Category Grade Standard Region/Area Standard Content
Metals 4Cr3NiMo GB/T 15547 China 锻钢冷轧辊辊坯

Chemical composition(mass fraction)(wt.%) of the 4Cr3NiMo

Element Min Max Similar
V - 0.2000 -
Si 0.2000 0.5000 -
S - 0.0150 -
P - 0.0200 -
Mo 0.4000 0.8000 -
Mn 0.4000 0.8000 -
Cu - 0.2500 -
Cr 2.8000 3.8000 -
C 0.4500 0.5500 -

Mechanical Properties of steel grade 4Cr3NiMo

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)
331 (≥) 484 (≥) 11 21 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 221

Physical Properties of steel grade 4Cr3NiMo

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 - -     0.43 -  
389 371 - 23.3 223   -  
263 - 22 44.2   324 333

Heat Treatment of steel grade 4Cr3NiMo

Heat treated : 1115°C - 1288°C

Technological Curves of steel grade 4Cr3NiMo

Cross Reference Table (Equivalent Grade) of 4Cr3NiMo

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