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19 NCDB 2

France AFNOR NF 19NCDB2 Case hardening steels - Technical delivery conditions and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 19NCDB2 / 19 NCDB 2
Category Grade Standard Region/Area Standard Content
Metals 19 NCDB 2 NF A35-551 France Case hardening steels - Technical delivery conditions

Chemical composition(mass fraction)(wt.%) of the 19 NCDB 2

Element Min Max Similar

Mechanical Properties of steel grade 19 NCDB 2

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)
654 (≥) 433 (≥) 21 12 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 332

Physical Properties of steel grade 19 NCDB 2

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 - -     0.12 -  
678 719 - 11.3 342   -  
685 - 32 14.2   231 241

Heat Treatment of steel grade 19 NCDB 2

Heat treated : 1146°C - 1986°C

Technological Curves of steel grade 19 NCDB 2

Cross Reference Table (Equivalent Grade) of 19 NCDB 2

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