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Germany DIN 27MnB5 Low alloyed MnB steel and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 27MnB5 / 27 MnB 5
Category Grade Standard Region/Area Standard Content
Metals 27 MnB 5 -- Germany Low alloyed MnB steel

Chemical composition(mass fraction)(wt.%) of the 27 MnB 5

Element Min Max Similar
Ti 0.0200 0.0600 -
Si - 0.4000 -
S - 0.0250 -
P - 0.0250 -
Mn 1.1000 1.3000 -
Cr - 0.5000 -
C 0.2500 0.3000 -
B 0.0008 0.0040 -
Al 0.0200 - -

Mechanical Properties of steel grade 27 MnB 5

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)
863 (≥) 652 (≥) 41 42 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 441

Physical Properties of steel grade 27 MnB 5

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
42 - -     0.34 -  
692 153 - 34.3 412   -  
618 - 23 44.2   314 214

Heat Treatment of steel grade 27 MnB 5

Heat treated : 1729°C - 1967°C

Technological Curves of steel grade 27 MnB 5

Cross Reference Table (Equivalent Grade) of 27 MnB 5

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