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G 40 Mn 5

EU EN G40Mn5 调质用低锰合金钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: G40Mn5 / G 40 Mn 5
Category Grade Standard Region/Area Standard Content
Metals G 40 Mn 5 -- EU 调质用低锰合金钢

Chemical composition(mass fraction)(wt.%) of the G 40 Mn 5

Element Min Max Similar

Mechanical Properties of steel grade G 40 Mn 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)
346 (≥) 384 (≥) 44 23 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 321

Physical Properties of steel grade G 40 Mn 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
22 - -     0.21 -  
122 817 - 22.3 133   -  
411 - 14 24.2   443 331

Heat Treatment of steel grade G 40 Mn 5

Heat treated : 1352°C - 1771°C

Technological Curves of steel grade G 40 Mn 5

Cross Reference Table (Equivalent Grade) of G 40 Mn 5

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