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China 宝钢Q/BQB B444L 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: B444L / B444L
Category Grade Standard Region/Area Standard Content
Metals B444L 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 B444L

Element Min Max Similar
Mo 0.6000 1.2000 -
Ti+Nb+Zr - 0.8000 -
N - 0.0250 -
Cu - 0.6000 -
Cr 20.0000 21.5000 -
Ni - 0.6000 -
S - 0.0300 -
P - 0.0350 -
Mn - 1.0000 -
Si - 1.0000 -
C - 0.0250 -

Mechanical Properties of steel grade B444L

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)
273 (≥) 482 (≥) 43 12 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 443

Physical Properties of steel grade B444L

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
23 - -     0.13 -  
951 143 - 13.3 313   -  
394 - 14 14.2   141 433

Heat Treatment of steel grade B444L

Heat treated : 1639°C - 1125°C

Technological Curves of steel grade B444L

Cross Reference Table (Equivalent Grade) of B444L

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