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America SAE 309Cb Chemical compositions of SAE wrought stainless steels and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 309Cb / 309Cb
Category Grade Standard Region/Area Standard Content
Metals 309Cb SAE J 405 America Chemical compositions of SAE wrought stainless steels

Chemical composition(mass fraction)(wt.%) of the 309Cb

Element Min Max Similar
Si - 0.7500 -
S - 0.0300 -
P - 0.0450 -
Ni 12.0000 16.0000 -
Nb - 1.1000 -
Mn - 2.0000 -
Cr 22.0000 24.0000 -
C - 0.0800 -

Mechanical Properties of steel grade 309Cb

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)
567 (≥) 586 (≥) 11 31 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 313

Physical Properties of steel grade 309Cb

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
21 - -     0.21 -  
773 597 - 44.3 241   -  
271 - 31 42.2   114 122

Heat Treatment of steel grade 309Cb

Heat treated : 1242°C - 1377°C

Technological Curves of steel grade 309Cb

Cross Reference Table (Equivalent Grade) of 309Cb

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