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China GB B307Mn 不锈钢焊丝和焊带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: B307Mn / B307Mn
Category Grade Standard Region/Area Standard Content
Metals B307Mn GB/T 29713 China 不锈钢焊丝和焊带

Chemical composition(mass fraction)(wt.%) of the B307Mn

Element Min Max Similar
C - 0.2000 -
Si - 1.2000 -
Mn 5.0000 8.0000 -
P - 0.0300 -
S - 0.0300 -
Cr 17.0000 20.0000 -
Ni 7.0000 10.0000 -
Mo - 0.5000 -
Cu - 0.5000 -

Mechanical Properties of steel grade B307Mn

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)
314 (≥) 611 (≥) 21 14 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 244

Physical Properties of steel grade B307Mn

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
42 - -     0.41 -  
329 341 - 22.3 314   -  
993 - 11 21.2   323 433

Heat Treatment of steel grade B307Mn

Heat treated : 1927°C - 1551°C

Technological Curves of steel grade B307Mn

Cross Reference Table (Equivalent Grade) of B307Mn

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