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Description

Germany DIN 1.4939 The high-temperature and high-strength steel and 1.4939 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Steel: 1.4939
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Steel 1.4939 DIN Germany The high-temperature and high-strength steel
65Si7
1.5028
1.5028
37MnSi5
37MnSi5
X22CrMoV12-1
1.4923
1.4934
1.4935
X20CrMoWV12-1

Chemical composition(mass fraction)(wt.%) of the 1.4939

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%) V(%) N(%)
0.08-0.15 Max 0.50 0.40-0.90 Max 0.025 Max 0.015 11.0-12.5 2.00-3.00 1.50-2.00 0.25-0.40 0.25-0.40

Mechanical Properties of steel grade 1.4939

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)
124 (≥) 845 (≥) 22 21 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 233

Physical Properties of steel grade 1.4939

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
22 - -     0.43 -  
915 278 - 34.3 113   -  
599 - 34 21.2   424 311

Heat Treatment of steel grade 1.4939

Heat treated : 1844°C - 1691°C

Technological Curves of steel grade 1.4939

Cross Reference Table (Equivalent Grade) of 1.4939

Grade Standard Country Application
1.4939 DIN Germany The high-temperature and high-strength steel

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