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China 舞钢Q/WTB Q235A 优质大厚度Q235钢板技术条件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Q235A / Q235A
Category Grade Standard Region/Area Standard Content
Metals Q235A WYJ 110 China 优质大厚度Q235钢板技术条件

Chemical composition(mass fraction)(wt.%) of the Q235A

Element Min Max Similar
Cu - 0.3000 -
Ni - 0.3000 -
Cr - 0.3000 -
Al 0.0200 - -
S - 0.0300 -
P - 0.0300 -
Mn - 1.4000 -
Si - 0.3500 -
C - 0.2200 -

Mechanical Properties of steel grade Q235A

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)
141 (≥) 899 (≥) 41 22 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 113

Physical Properties of steel grade Q235A

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
41 - -     0.34 -  
576 256 - 23.3 311   -  
471 - 14 11.2   133 422

Heat Treatment of steel grade Q235A

Heat treated : 1436°C - 1539°C

Technological Curves of steel grade Q235A

Cross Reference Table (Equivalent Grade) of Q235A

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