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France AFNOR NF 25MS5 Iron and steel products. Chain steels. Grades and types and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 25MS5 / 25 MS 5
Category Grade Standard Region/Area Standard Content
Metals 25 MS 5 NF A35-566 France Iron and steel products. Chain steels. Grades and types

Chemical composition(mass fraction)(wt.%) of the 25 MS 5

Element Min Max Similar
Si 0.3000 0.5500 -
P - 0.0350 -
Mn 1.1000 1.6000 -
C 0.2400 0.3000 -
Al 0.0200 - -

Mechanical Properties of steel grade 25 MS 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)
774 (≥) 255 (≥) 41 22 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 322

Physical Properties of steel grade 25 MS 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 - -     0.12 -  
941 748 - 23.3 133   -  
341 - 12 12.2   144 113

Heat Treatment of steel grade 25 MS 5

Heat treated : 1788°C - 1885°C

Technological Curves of steel grade 25 MS 5

Cross Reference Table (Equivalent Grade) of 25 MS 5

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