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France AFNOR NF 37CrS4 淬火和回火钢 - 第1部分:一般交货技术条件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 37CrS4 / 37 CrS 4
Category Grade Standard Region/Area Standard Content
Metals 37 CrS 4 NF EN 10083-1 France 淬火和回火钢 - 第1部分:一般交货技术条件

Chemical composition(mass fraction)(wt.%) of the 37 CrS 4

Element Min Max Similar
Si - 0.4000 -
S 0.0200 0.0400 -
P - 0.0250 -
Mn 0.6000 0.9000 -
Cr 0.9000 1.2000 -
C 0.3400 0.4100 -

Mechanical Properties of steel grade 37 CrS 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)
478 (≥) 238 (≥) 32 14 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 431

Physical Properties of steel grade 37 CrS 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
14 - -     0.24 -  
653 515 - 22.3 332   -  
233 - 42 24.2   333 113

Heat Treatment of steel grade 37 CrS 4

Heat treated : 1391°C - 1433°C

Technological Curves of steel grade 37 CrS 4

Cross Reference Table (Equivalent Grade) of 37 CrS 4

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