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China GB S409Nb 不锈钢焊丝和焊带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: S409Nb / S409Nb
Category Grade Standard Region/Area Standard Content
Metals S409Nb GB/T 29713 China 不锈钢焊丝和焊带

Chemical composition(mass fraction)(wt.%) of the S409Nb

Element Min Max Similar
Nb - 1.0000 -
Cu - 0.7500 -
Mo - 0.7500 -
Ni - 0.6000 -
Cr 10.5000 13.5000 -
S - 0.0300 -
P - 0.0300 -
Mn - 0.6000 -
Si - 0.5000 -
C - 0.1200 -

Mechanical Properties of steel grade S409Nb

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)
566 (≥) 488 (≥) 11 13 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 322

Physical Properties of steel grade S409Nb

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
14 - -     0.41 -  
365 692 - 22.3 412   -  
248 - 23 33.2   334 141

Heat Treatment of steel grade S409Nb

Heat treated : 1239°C - 1176°C

Technological Curves of steel grade S409Nb

Cross Reference Table (Equivalent Grade) of S409Nb

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