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China NB 42CrMoE 压水堆核电厂阀门 第6部分:紧固件技术条件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 42CrMoE / 42CrMoE
Category Grade Standard Region/Area Standard Content
Metals 42CrMoE NB/T 20010.6 China 压水堆核电厂阀门 第6部分:紧固件技术条件

Chemical composition(mass fraction)(wt.%) of the 42CrMoE

Element Min Max Similar
Mo 0.1500 0.3000 -
Cr 0.8000 1.1500 -
S - 0.0150 -
P - 0.0250 -
Mn 0.7500 1.0000 -
Si 0.1000 0.4000 -
C 0.3800 0.4800 -

Mechanical Properties of steel grade 42CrMoE

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)
521 (≥) 137 (≥) 33 41 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 322

Physical Properties of steel grade 42CrMoE

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
21 - -     0.31 -  
231 197 - 12.3 112   -  
933 - 14 31.2   231 332

Heat Treatment of steel grade 42CrMoE

Heat treated : 1193°C - 1986°C

Technological Curves of steel grade 42CrMoE

Cross Reference Table (Equivalent Grade) of 42CrMoE

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