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EU EN 30MnB5 Steels for quenching and tempering - part 3: technical delivery conditions for alloy steels and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 30MnB5 / 30 MnB 5
Category Grade Standard Region/Area Standard Content
Metals 30 MnB 5 EN 10083-3 EU Steels for quenching and tempering - part 3: technical delivery conditions for alloy steels

Chemical composition(mass fraction)(wt.%) of the 30 MnB 5

Element Min Max Similar
Si - 0.4000 -
S - 0.0350 -
P - 0.0250 -
Mn 1.1500 1.4500 -
C 0.2700 0.3300 -
B 0.0008 0.0050 -

Mechanical Properties of steel grade 30 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)
345 (≥) 648 (≥) 14 42 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 322

Physical Properties of steel grade 30 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
43 - -     0.11 -  
959 368 - 11.3 333   -  
956 - 43 43.2   223 242

Heat Treatment of steel grade 30 MnB 5

Heat treated : 1174°C - 1671°C

Technological Curves of steel grade 30 MnB 5

Cross Reference Table (Equivalent Grade) of 30 MnB 5

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