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19 12 3 Nb

France AFNOR NF 19123Nb 焊材 - 覆盖电极的用于不锈钢和耐热钢的手工电弧焊 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 19123Nb / 19 12 3 Nb
Category Grade Standard Region/Area Standard Content
Metals 19 12 3 Nb NF EN 1600 France 焊材 - 覆盖电极的用于不锈钢和耐热钢的手工电弧焊

Chemical composition(mass fraction)(wt.%) of the 19 12 3 Nb

Element Min Max Similar
Si - 1.2000 -
S - 0.0250 -
P+S - 0.0500 -
P - 0.0300 -
Ni 10.0000 13.0000 -
Nb - - -
Mo 2.5000 3.0000 -
Mn - 2.0000 -
Fe - - -
Cu - 0.7500 -
Cr 17.0000 20.0000 -
C - 0.0800 -

Mechanical Properties of steel grade 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)
898 (≥) 648 (≥) 21 23 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 421

Physical Properties of steel grade 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
13 - -     0.33 -  
454 977 - 13.3 341   -  
684 - 11 14.2   434 121

Heat Treatment of steel grade 19 12 3 Nb

Heat treated : 1599°C - 1931°C

Technological Curves of steel grade 19 12 3 Nb

Cross Reference Table (Equivalent Grade) of 19 12 3 Nb

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