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China GB B321 不锈钢焊丝和焊带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: B321 / B321
Category Grade Standard Region/Area Standard Content
Metals B321 GB/T 29713 China 不锈钢焊丝和焊带

Chemical composition(mass fraction)(wt.%) of the B321

Element Min Max Similar
C - 0.0800 -
Si - 0.6500 -
Mn 1.0000 2.5000 -
P - 0.0300 -
S - 0.0300 -
Cr 18.5000 20.5000 -
Ni 9.5000 10.5000 -
Mo - 0.7500 -
Cu - 0.7500 -
Ti - 1.0000 -

Mechanical Properties of steel grade B321

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)
225 (≥) 784 (≥) 21 12 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 413

Physical Properties of steel grade B321

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
22 - -     0.32 -  
743 553 - 34.3 111   -  
422 - 32 22.2   212 112

Heat Treatment of steel grade B321

Heat treated : 1828°C - 1346°C

Technological Curves of steel grade B321

Cross Reference Table (Equivalent Grade) of B321

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