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China GB B307Si 不锈钢焊丝和焊带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: B307Si / B307Si
Category Grade Standard Region/Area Standard Content
Metals B307Si GB/T 29713 China 不锈钢焊丝和焊带

Chemical composition(mass fraction)(wt.%) of the B307Si

Element Min Max Similar
C 0.0400 0.1400 -
Si 0.6500 1.0000 -
Mn 6.5000 8.0000 -
P - 0.0300 -
S - 0.0300 -
Cr 18.5000 22.0000 -
Ni 8.0000 10.7000 -
Mo - 0.7500 -
Cu - 0.7500 -

Mechanical Properties of steel grade B307Si

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)
596 (≥) 897 (≥) 31 32 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 324

Physical Properties of steel grade B307Si

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
24 - -     0.43 -  
434 874 - 31.3 334   -  
311 - 21 11.2   432 222

Heat Treatment of steel grade B307Si

Heat treated : 1632°C - 1845°C

Technological Curves of steel grade B307Si

Cross Reference Table (Equivalent Grade) of B307Si

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