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China GB Q235B 碳素结构钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Q235B / Q235 B
Category Grade Standard Region/Area Standard Content
Metals Q235 B GB/T 700 China 碳素结构钢

Chemical composition(mass fraction)(wt.%) of the Q235 B

Element Min Max Similar

Mechanical Properties of steel grade Q235 B

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)
551 (≥) 143 (≥) 24 44 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 232

Physical Properties of steel grade Q235 B

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
31 - -     0.44 -  
936 991 - 22.3 133   -  
146 - 31 14.2   212 343

Heat Treatment of steel grade Q235 B

Heat treated : 1911°C - 1517°C

Technological Curves of steel grade Q235 B

Cross Reference Table (Equivalent Grade) of Q235 B

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