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45 MF 6.1

France AFNOR NF 45MF6.1 Iron and steel. Heat treated free-cutting special steel. Bars and wire rods drawing. Types and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 45MF6.1 / 45 MF 6.1
Category Grade Standard Region/Area Standard Content
Metals 45 MF 6.1 NF A35-562 France Iron and steel. Heat treated free-cutting special steel. Bars and wire rods drawing. Types

Chemical composition(mass fraction)(wt.%) of the 45 MF 6.1

Element Min Max Similar

Mechanical Properties of steel grade 45 MF 6.1

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)
126 (≥) 829 (≥) 44 43 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 123

Physical Properties of steel grade 45 MF 6.1

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
33 - -     0.33 -  
556 619 - 44.3 442   -  
635 - 12 11.2   322 411

Heat Treatment of steel grade 45 MF 6.1

Heat treated : 1379°C - 1617°C

Technological Curves of steel grade 45 MF 6.1

Cross Reference Table (Equivalent Grade) of 45 MF 6.1

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