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Germany DIN 1.2739 Alloyed CrNiMoV steel and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 1.2739 / 1.2739
Category Grade Standard Region/Area Standard Content
Metals 1.2739 -- Germany Alloyed CrNiMoV steel

Chemical composition(mass fraction)(wt.%) of the 1.2739

Element Min Max Similar
V 0.2500 0.3200 -
Si 0.3000 0.5000 -
S - 0.0300 -
P - 0.0300 -
Ni 2.3000 2.6000 -
Mo 0.5000 0.7000 -
Mn 0.2000 0.4000 -
Cr 0.6000 0.9000 -
C 0.2400 0.3200 -

Mechanical Properties of steel grade 1.2739

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)
484 (≥) 455 (≥) 13 34 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 241

Physical Properties of steel grade 1.2739

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
12 - -     0.33 -  
275 118 - 42.3 312   -  
534 - 34 43.2   243 413

Heat Treatment of steel grade 1.2739

Heat treated : 1635°C - 1731°C

Technological Curves of steel grade 1.2739

Cross Reference Table (Equivalent Grade) of 1.2739

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