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Q345GJZ E

China YB Q345GJZE 焊接H型钢(The welded steel H-section) and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Q345GJZE / Q345GJZ E
Category Grade Standard Region/Area Standard Content
Metals Q345GJZ E YB 3301 China 焊接H型钢(The welded steel H-section)

Chemical composition(mass fraction)(wt.%) of the Q345GJZ E

Element Min Max Similar
Al 0.0150 - -
Ti 0.0100 0.1000 -
Nb 0.0150 0.0600 -
V 0.0200 0.1500 -
S - 0.0100 -
P - 0.0200 -
Mn - 1.6000 -
Si - 0.5500 -
C - 0.1800 -

Mechanical Properties of steel grade Q345GJZ E

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)
528 (≥) 487 (≥) 11 13 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 244

Physical Properties of steel grade Q345GJZ E

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 - -     0.24 -  
669 861 - 44.3 111   -  
513 - 31 24.2   343 343

Heat Treatment of steel grade Q345GJZ E

Heat treated : 1724°C - 1188°C

Technological Curves of steel grade Q345GJZ E

Cross Reference Table (Equivalent Grade) of Q345GJZ E

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