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China GB Q345P 热轧钢板桩 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Q345P / Q345P
Category Grade Standard Region/Area Standard Content
Metals Q345P GB/T 20933 China 热轧钢板桩

Chemical composition(mass fraction)(wt.%) of the Q345P

Element Min Max Similar

Mechanical Properties of steel grade Q345P

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)
645 (≥) 453 (≥) 43 42 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 212

Physical Properties of steel grade Q345P

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
22 - -     0.42 -  
663 571 - 32.3 224   -  
531 - 11 31.2   141 311

Heat Treatment of steel grade Q345P

Heat treated : 1685°C - 1359°C

Technological Curves of steel grade Q345P

Cross Reference Table (Equivalent Grade) of Q345P

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