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France AFNOR NF 55M5 Non standardized steels and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 55M5 / 55 M 5
Category Grade Standard Region/Area Standard Content
Metals 55 M 5 -- France Non standardized steels

Chemical composition(mass fraction)(wt.%) of the 55 M 5

Element Min Max Similar

Mechanical Properties of steel grade 55 M 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)
666 (≥) 834 (≥) 44 33 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 323

Physical Properties of steel grade 55 M 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
11 - -     0.12 -  
548 893 - 33.3 231   -  
698 - 32 44.2   414 334

Heat Treatment of steel grade 55 M 5

Heat treated : 1127°C - 1631°C

Technological Curves of steel grade 55 M 5

Cross Reference Table (Equivalent Grade) of 55 M 5

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