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China 宝钢Q/BQB B445J1M 食具容器用资源节约型不锈钢钢板及钢带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: B445J1M / B445J1M
Category Grade Standard Region/Area Standard Content
Metals B445J1M Q/BQB 4303 China 食具容器用资源节约型不锈钢钢板及钢带

Chemical composition(mass fraction)(wt.%) of the B445J1M

Element Min Max Similar
Mo 0.4000 1.2000 -
Ti+Nb - 0.8000 -
N - 0.0250 -
Cu - 0.6000 -
Cr 21.0000 22.5000 -
Ni - 0.6000 -
S - 0.0300 -
P - 0.0350 -
Mn - 1.0000 -
Si - 1.0000 -
C - 0.0250 -

Mechanical Properties of steel grade B445J1M

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)
464 (≥) 831 (≥) 21 44 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 224

Physical Properties of steel grade B445J1M

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
43 - -     0.32 -  
336 392 - 23.3 313   -  
146 - 22 14.2   232 121

Heat Treatment of steel grade B445J1M

Heat treated : 1712°C - 1289°C

Technological Curves of steel grade B445J1M

Cross Reference Table (Equivalent Grade) of B445J1M

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