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China GB B630 不锈钢焊丝和焊带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: B630 / B630
Category Grade Standard Region/Area Standard Content
Metals B630 GB/T 29713 China 不锈钢焊丝和焊带

Chemical composition(mass fraction)(wt.%) of the B630

Element Min Max Similar
C - 0.0500 -
Si - 0.7500 -
Mn 0.2500 0.7500 -
P - 0.0300 -
S - 0.0300 -
Cr 16.0000 16.7500 -
Ni 4.5000 5.0000 -
Mo - 0.7500 -
Cu 3.2500 4.0000 -
Nb 0.1500 0.3000 -

Mechanical Properties of steel grade B630

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)
939 (≥) 326 (≥) 32 23 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 242

Physical Properties of steel grade B630

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
34 - -     0.34 -  
379 845 - 31.3 122   -  
492 - 42 13.2   431 414

Heat Treatment of steel grade B630

Heat treated : 1987°C - 1776°C

Technological Curves of steel grade B630

Cross Reference Table (Equivalent Grade) of B630

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