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25 MNDC 6

France AFNOR NF 25MNDC6 Iron and steel products. Chain steels. Grades and types and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 25MNDC6 / 25 MNDC 6
Category Grade Standard Region/Area Standard Content
Metals 25 MNDC 6 NF A35-566 France Iron and steel products. Chain steels. Grades and types

Chemical composition(mass fraction)(wt.%) of the 25 MNDC 6

Element Min Max Similar
Si 0.1000 0.3500 -
S - 0.0200 -
P - 0.0200 -
Ni 0.9000 1.1000 -
Mo 0.4000 0.5500 -
Mn 1.4000 1.7000 -
Fe - - -
Cr 0.2000 0.4000 -
C 0.2300 0.2800 -
Al 0.0200 - -

Mechanical Properties of steel grade 25 MNDC 6

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)
317 (≥) 511 (≥) 14 22 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 414

Physical Properties of steel grade 25 MNDC 6

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
24 - -     0.13 -  
866 383 - 22.3 424   -  
393 - 13 21.2   114 233

Heat Treatment of steel grade 25 MNDC 6

Heat treated : 1477°C - 1635°C

Technological Curves of steel grade 25 MNDC 6

Cross Reference Table (Equivalent Grade) of 25 MNDC 6

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