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Z 19.12.3 Nb

France AFNOR NF Z19.12.3Nb Welding consumables. Covered electrodes for manual metal arc welding of stainless and heat resisting steels. Classification and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Z19.12.3Nb / Z 19.12.3 Nb
Category Grade Standard Region/Area Standard Content
Metals Z 19.12.3 Nb NF A81-343 France Welding consumables. Covered electrodes for manual metal arc welding of stainless and heat resisting steels. Classification

Chemical composition(mass fraction)(wt.%) of the Z 19.12.3 Nb

Element Min Max Similar
Si - 0.9000 -
S - 0.0300 -
P - 0.0300 -
Ni 10.0000 13.0000 -
Nb - 1.1000 -
Mo 2.5000 3.0000 -
Mn - 2.5000 -
Cr 17.0000 20.0000 -
C - 0.0800 -

Mechanical Properties of steel grade Z 19.12.3 Nb

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)
813 (≥) 977 (≥) 13 12 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 211

Physical Properties of steel grade Z 19.12.3 Nb

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
42 - -     0.31 -  
659 577 - 32.3 233   -  
864 - 24 42.2   432 332

Heat Treatment of steel grade Z 19.12.3 Nb

Heat treated : 1998°C - 1247°C

Technological Curves of steel grade Z 19.12.3 Nb

Cross Reference Table (Equivalent Grade) of Z 19.12.3 Nb

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