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21MnCr 5-3

Germany DIN 21MnCr5-3 Weldable high strength low alloyed MnCr steel and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 21MnCr5-3 / 21MnCr 5-3
Category Grade Standard Region/Area Standard Content
Metals 21MnCr 5-3 -- Germany Weldable high strength low alloyed MnCr steel

Chemical composition(mass fraction)(wt.%) of the 21MnCr 5-3

Element Min Max Similar

Mechanical Properties of steel grade 21MnCr 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)
162 (≥) 663 (≥) 43 24 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 233

Physical Properties of steel grade 21MnCr 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
31 - -     0.44 -  
122 398 - 43.3 111   -  
446 - 22 41.2   433 311

Heat Treatment of steel grade 21MnCr 5-3

Heat treated : 1744°C - 1874°C

Technological Curves of steel grade 21MnCr 5-3

Cross Reference Table (Equivalent Grade) of 21MnCr 5-3

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