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E 19.12.3 Nb

International ISO E19.12.3Nb 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: E19.12.3Nb / E 19.12.3 Nb
Category Grade Standard Region/Area Standard Content
Metals E 19.12.3 Nb ISO 3581 International Welding consumables - Covered electrodes for manual metal arc welding of stainless and heat-resisting steels - Classification

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

Element Min Max Similar
Ni 10.0000 14.0000 -
Nb - 1.2000 -
Mo 2.5000 3.5000 -
Cr 17.0000 20.0000 -
C - 0.0800 -

Mechanical Properties of steel grade E 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)
983 (≥) 471 (≥) 24 22 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 444

Physical Properties of steel grade E 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
24 - -     0.33 -  
814 968 - 14.3 132   -  
818 - 21 11.2   232 132

Heat Treatment of steel grade E 19.12.3 Nb

Heat treated : 1666°C - 1776°C

Technological Curves of steel grade E 19.12.3 Nb

Cross Reference Table (Equivalent Grade) of E 19.12.3 Nb

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