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31 NiCrMo 13-4

Germany DIN 31NiCrMo13-4 Alloyed NiCrMo steel and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 31NiCrMo13-4 / 31 NiCrMo 13-4
Category Grade Standard Region/Area Standard Content
Metals 31 NiCrMo 13-4 -- Germany Alloyed NiCrMo steel

Chemical composition(mass fraction)(wt.%) of the 31 NiCrMo 13-4

Element Min Max Similar
Si 0.1500 0.4000 -
S - 0.0250 -
P - 0.0250 -
Ni 3.0000 3.5000 -
Mo 0.2000 0.3000 -
Mn 0.4000 0.7000 -
Cr 0.9000 1.2000 -
C 0.2800 0.3500 -

Mechanical Properties of steel grade 31 NiCrMo 13-4

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)
862 (≥) 732 (≥) 14 42 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 412

Physical Properties of steel grade 31 NiCrMo 13-4

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
44 - -     0.43 -  
717 293 - 42.3 234   -  
531 - 24 41.2   112 433

Heat Treatment of steel grade 31 NiCrMo 13-4

Heat treated : 1562°C - 1298°C

Technological Curves of steel grade 31 NiCrMo 13-4

Cross Reference Table (Equivalent Grade) of 31 NiCrMo 13-4

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