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20 MnCr 5-3

Germany DIN 20MnCr5-3 Weldable high strength low alloyed MnCr steel and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 20MnCr5-3 / 20 MnCr 5-3
Category Grade Standard Region/Area Standard Content
Metals 20 MnCr 5-3 -- Germany Weldable high strength low alloyed MnCr steel

Chemical composition(mass fraction)(wt.%) of the 20 MnCr 5-3

Element Min Max Similar
Si - 0.7000 -
S - 0.0350 -
P - 0.0350 -
Mn - 1.6000 -
Cr 0.5000 1.2000 -
C - 0.2400 -

Mechanical Properties of steel grade 20 MnCr 5-3

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)
992 (≥) 145 (≥) 21 44 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 233

Physical Properties of steel grade 20 MnCr 5-3

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
23 - -     0.21 -  
119 687 - 21.3 444   -  
469 - 43 32.2   312 113

Heat Treatment of steel grade 20 MnCr 5-3

Heat treated : 1295°C - 1381°C

Technological Curves of steel grade 20 MnCr 5-3

Cross Reference Table (Equivalent Grade) of 20 MnCr 5-3

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