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China GB Q235qC 桥梁用结构钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Q235qC / Q235q C
Category Grade Standard Region/Area Standard Content
Metals Q235q C GB/T 714 China 桥梁用结构钢

Chemical composition(mass fraction)(wt.%) of the Q235q C

Element Min Max Similar
C - 0.2000 -
Si - 0.3000 -
Mn 0.4000 0.7000 -
S - 0.0350 -
P - 0.0350 -
Si - 0.3500 -
S - 0.0300 -
P - 0.0300 -
Ni - 0.3000 -
N - 0.0120 -
Mn - 1.4000 -
Cu - 0.3000 -
Cr - 0.3000 -
C - 0.1700 -
Al 0.0150 - -

Mechanical Properties of steel grade Q235q C

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)
819 (≥) 978 (≥) 42 14 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 231

Physical Properties of steel grade Q235q C

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 - -     0.33 -  
537 379 - 21.3 222   -  
484 - 13 44.2   434 212

Heat Treatment of steel grade Q235q C

Heat treated : 1867°C - 1833°C

Technological Curves of steel grade Q235q C

Cross Reference Table (Equivalent Grade) of Q235q C

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