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20 MoCrS 4

Germany DIN 20MoCrS4 钢棒,棒材和线材冷镦和冷挤压 - 第3部分:交货技术条件:表面硬化钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 20MoCrS4 / 20 MoCrS 4
Category Grade Standard Region/Area Standard Content
Metals 20 MoCrS 4 DIN EN 10263-3 Germany 钢棒,棒材和线材冷镦和冷挤压 - 第3部分:交货技术条件:表面硬化钢

Chemical composition(mass fraction)(wt.%) of the 20 MoCrS 4

Element Min Max Similar
Si - 0.4000 -
S 0.0200 0.0400 -
P - 0.0250 -
Mo 0.4000 0.5000 -
Mn 0.7000 1.0000 -
Cr 0.3000 0.6000 -
C 0.1700 0.2300 -
Si 0.1500 0.4000 -
S 0.0200 0.0350 -
P - 0.0350 -
Mo 0.4000 0.5000 -
Mn 0.6000 0.9000 -
Cr 0.3000 0.5000 -
C 0.1700 0.2200 -

Mechanical Properties of steel grade 20 MoCrS 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)
664 (≥) 181 (≥) 22 22 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 211

Physical Properties of steel grade 20 MoCrS 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
41 - -     0.21 -  
846 238 - 23.3 124   -  
952 - 13 41.2   333 342

Heat Treatment of steel grade 20 MoCrS 4

Heat treated : 1131°C - 1471°C

Technological Curves of steel grade 20 MoCrS 4

Cross Reference Table (Equivalent Grade) of 20 MoCrS 4

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