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China GB B308 不锈钢焊丝和焊带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: B308 / B308
Category Grade Standard Region/Area Standard Content
Metals B308 GB/T 29713 China 不锈钢焊丝和焊带

Chemical composition(mass fraction)(wt.%) of the B308

Element Min Max Similar
C - 0.0800 -
Si - 0.6500 -
Mn 1.0000 2.5000 -
P - 0.0300 -
S - 0.0300 -
Cr 19.5000 22.0000 -
Ni 9.0000 11.0000 -
Mo - 0.7500 -
Cu - 0.7500 -

Mechanical Properties of steel grade B308

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)
839 (≥) 876 (≥) 43 44 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 234

Physical Properties of steel grade B308

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 - -     0.11 -  
983 614 - 43.3 441   -  
368 - 31 44.2   224 232

Heat Treatment of steel grade B308

Heat treated : 1875°C - 1731°C

Technological Curves of steel grade B308

Cross Reference Table (Equivalent Grade) of B308

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