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France AFNOR NF 30N8 Non standardized steels and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 30N8 / 30 N 8
Category Grade Standard Region/Area Standard Content
Metals 30 N 8 -- France Non standardized steels

Chemical composition(mass fraction)(wt.%) of the 30 N 8

Element Min Max Similar

Mechanical Properties of steel grade 30 N 8

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)
938 (≥) 945 (≥) 13 41 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 432

Physical Properties of steel grade 30 N 8

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 -  
383 182 - 44.3 212   -  
815 - 42 12.2   342 142

Heat Treatment of steel grade 30 N 8

Heat treated : 1349°C - 1293°C

Technological Curves of steel grade 30 N 8

Cross Reference Table (Equivalent Grade) of 30 N 8

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