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France AFNOR NF 30MB5 Iron and steel. Continuously hot-rolled strip of non-alloy and alloy steels for cold re-rolling. Technical delivery conditions and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 30MB5 / 30 MB 5
Category Grade Standard Region/Area Standard Content
Metals 30 MB 5 NF A36-102 France Iron and steel. Continuously hot-rolled strip of non-alloy and alloy steels for cold re-rolling. Technical delivery conditions

Chemical composition(mass fraction)(wt.%) of the 30 MB 5

Element Min Max Similar

Mechanical Properties of steel grade 30 MB 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)
635 (≥) 366 (≥) 14 42 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 424

Physical Properties of steel grade 30 MB 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
33 - -     0.21 -  
457 652 - 11.3 332   -  
285 - 43 23.2   443 124

Heat Treatment of steel grade 30 MB 5

Heat treated : 1921°C - 1469°C

Technological Curves of steel grade 30 MB 5

Cross Reference Table (Equivalent Grade) of 30 MB 5

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