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28 MnCr 4-3

Germany DIN 28MnCr4-3 Weldable high strength low alloyed MnCr steel and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 28MnCr4-3 / 28 MnCr 4-3
Category Grade Standard Region/Area Standard Content
Metals 28 MnCr 4-3 -- Germany Weldable high strength low alloyed MnCr steel

Chemical composition(mass fraction)(wt.%) of the 28 MnCr 4-3

Element Min Max Similar
Si - 0.7000 -
S - 0.0250 -
P - 0.0250 -
Mo - 0.1000 -
Mn - 1.0000 -
Cr - 0.8000 -
C - 0.3000 -

Mechanical Properties of steel grade 28 MnCr 4-3

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)
642 (≥) 896 (≥) 41 32 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 243

Physical Properties of steel grade 28 MnCr 4-3

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
41 - -     0.31 -  
237 768 - 24.3 244   -  
471 - 13 32.2   323 323

Heat Treatment of steel grade 28 MnCr 4-3

Heat treated : 1812°C - 1828°C

Technological Curves of steel grade 28 MnCr 4-3

Cross Reference Table (Equivalent Grade) of 28 MnCr 4-3

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