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America AWS EC409Nb Specification for stainless steel flux cored and metal cored welding electrodes and rods 4th edition and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: EC409Nb / EC409Nb
Category Grade Standard Region/Area Standard Content
Metals EC409Nb AWS A5.22/A5.22M America Specification for stainless steel flux cored and metal cored welding electrodes and rods 4th edition

Chemical composition(mass fraction)(wt.%) of the EC409Nb

Element Min Max Similar
Cu - 0.7500 -
S - 0.0300 -
P - 0.0400 -
Si - 1.0000 -
Mn - 0.8000 -
Nb+Ta 0.7500 0.8000 -
Mo - 0.5000 -
Ni - 0.6000 -
Cr 10.5000 13.5000 -
C - 0.0800 -

Mechanical Properties of steel grade EC409Nb

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)
715 (≥) 737 (≥) 41 41 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 442

Physical Properties of steel grade EC409Nb

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
31 - -     0.31 -  
349 388 - 21.3 434   -  
738 - 41 22.2   321 313

Heat Treatment of steel grade EC409Nb

Heat treated : 1851°C - 1637°C

Technological Curves of steel grade EC409Nb

Cross Reference Table (Equivalent Grade) of EC409Nb

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