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France AFNOR NF MN550-4 Foundry products. Malleable iron casting with nodular ferritic or perlitic graphite and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: MN550-4 / MN 550-4
Category Grade Standard Region/Area Standard Content
Metals MN 550-4 NF A32-702 France Foundry products. Malleable iron casting with nodular ferritic or perlitic graphite

Chemical composition(mass fraction)(wt.%) of the MN 550-4

Element Min Max Similar

Mechanical Properties of steel grade MN 550-4

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)
159 (≥) 251 (≥) 43 33 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 121

Physical Properties of steel grade MN 550-4

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 - -     0.14 -  
365 868 - 22.3 321   -  
846 - 21 12.2   221 411

Heat Treatment of steel grade MN 550-4

Heat treated : 1753°C - 1874°C

Technological Curves of steel grade MN 550-4

Cross Reference Table (Equivalent Grade) of MN 550-4

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