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China 宝钢Q/BQB S355J0 结构用热连轧钢板及钢带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: S355J0 / S355J0
Category Grade Standard Region/Area Standard Content
Metals S355J0 Q/BQB 303 China 结构用热连轧钢板及钢带

Chemical composition(mass fraction)(wt.%) of the S355J0

Element Min Max Similar
Cu - 0.5500 -
N - 0.0120 -
S - 0.0300 -
P - 0.0300 -
Mn - 1.6000 -
Si - 0.5500 -
C - 0.2000 -
Ceq - 0.4500 -
M - 0.0120 -
S - 0.0300 -
P - 0.0300 -
Mn - 1.6000 -
Si - 0.5500 -
C - 0.2000 -

Mechanical Properties of steel grade S355J0

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)
466 (≥) 931 (≥) 41 21 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 232

Physical Properties of steel grade S355J0

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
14 - -     0.43 -  
785 563 - 41.3 222   -  
535 - 21 23.2   441 211

Heat Treatment of steel grade S355J0

Heat treated : 1429°C - 1994°C

Technological Curves of steel grade S355J0

Cross Reference Table (Equivalent Grade) of S355J0

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