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France AFNOR NF M40-M Casting products. Magnetic cast steel grades and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: M40-M / M 40-M
Category Grade Standard Region/Area Standard Content
Metals M 40-M NF A32-052 France Casting products. Magnetic cast steel grades

Chemical composition(mass fraction)(wt.%) of the M 40-M

Element Min Max Similar
S - 0.0400 -
P - 0.0400 -

Mechanical Properties of steel grade M 40-M

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)
819 (≥) 933 (≥) 22 21 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 421

Physical Properties of steel grade M 40-M

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 -  
451 382 - 32.3 331   -  
525 - 33 33.2   124 123

Heat Treatment of steel grade M 40-M

Heat treated : 1491°C - 1658°C

Technological Curves of steel grade M 40-M

Cross Reference Table (Equivalent Grade) of M 40-M

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