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China 宝钢Q/BQB SUS420J1 热连轧不锈钢钢板及钢带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SUS420J1 / SUS420J1
Category Grade Standard Region/Area Standard Content
Metals SUS420J1 Q/BQB 4302 China 热连轧不锈钢钢板及钢带

Chemical composition(mass fraction)(wt.%) of the SUS420J1

Element Min Max Similar
Cr 12.0000 14.0000 -
S - 0.0300 -
P - 0.0400 -
Mn - 1.0000 -
Si - 1.0000 -
C 0.1600 0.2500 -

Mechanical Properties of steel grade SUS420J1

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)
379 (≥) 889 (≥) 21 31 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 421

Physical Properties of steel grade SUS420J1

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 - -     0.23 -  
816 257 - 41.3 434   -  
219 - 32 31.2   133 442

Heat Treatment of steel grade SUS420J1

Heat treated : 1232°C - 1521°C

Technological Curves of steel grade SUS420J1

Cross Reference Table (Equivalent Grade) of SUS420J1

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