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China 鞍钢Q/ASB Q235B 热连轧花纹钢板和钢带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Q235B / Q235B
Category Grade Standard Region/Area Standard Content
Metals Q235B Q/ASB 272 China 热连轧花纹钢板和钢带

Chemical composition(mass fraction)(wt.%) of the Q235B

Element Min Max Similar
S - 0.0250 -
P - 0.0300 -
Mn - 1.4000 -
Si - 0.3500 -
C - 0.2000 -
P - 0.0300 -
S - 0.0250 -
Mn 0.4000 0.7000 -
Si 0.1200 0.3000 -
C - 0.2000 -

Mechanical Properties of steel grade Q235B

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)
339 (≥) 259 (≥) 14 23 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 141

Physical Properties of steel grade Q235B

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
33 - -     0.21 -  
593 448 - 14.3 343   -  
245 - 41 41.2   334 232

Heat Treatment of steel grade Q235B

Heat treated : 1342°C - 1896°C

Technological Curves of steel grade Q235B

Cross Reference Table (Equivalent Grade) of Q235B

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