Q345qE steel plate for sea-crossing bridge

Q345qE steel plate is required to have high strength, toughness and withstand the load and impact of rolling stock. It should have good fatigue resistance, low temperature toughness and atmospheric corrosion resistance. The steel used for bolting and welding bridges shall also have good weldability and low notch sensitivity.

Q345qE bridge steel plate, executive standard GB/T 714.
Q345qE steel plate delivery status introduction:
Controlled rolling, normalizing, flaw detection, Z-direction performance.

Q345qE bridge steel plate grade introduction:
The difference between C, D and E refers to the difference of impact temperature in their performance.
Respectively:
Q345qC, 0 degree impact;
Q345qD, - 20 degree impact;
Q345qE is - 40 degree impact.
At different impact temperatures, the impact values are also different.

Q345qE steel plate yield point introduction:
Yield strength: 345-305 MPa
Tensile strength 510-490 MPa
Elongation δ5：21%

Application of Q345qE bridge steel plate:
Q345qE steel is used for the construction of long-span riveted, bolted or fully welded pipe piles and guardrails of highway bridges and railway bridges (including sea-crossing bridges).