Q345qC Steel Plate Steel Plate for Bridges Q345qC
Q345qC is a steel plate used to erect railways, highway bridges, etc. Q345qD differs from each other in that it refers to the difference in their impact temperature. They are: Q345qC grade, which is 0 degree impact; Q345qD grade, is -40 degree impact. The value of the impact varies depending on the impact temperature.
| chemical composition |
| Tabulation: Depu Steel Date: 2024-01-18 |
| trademark |
C |
Si |
Mn |
P |
S |
| Q345QC |
≤0.20 |
≤0.60 |
1-1.6 |
≤0.035 |
≤0.35 |
Note:
(1): In order to improve the properties of steel, other trace alloying elements other than the above table can be added, and the data comes from the network and is for reference only.
(2): The allowable deviation of the chemical composition of the finished steel plate shall be in accordance with the provisions
of GB/T222 Q345qC mechanical properties of the bridge plate: yield point:
δɡMPa 345-305. Tensile strength: δbMPa 510-490. Elongation δ5%: 21.
Q345qC steel plate is a low-alloy bridge steel plate, "Q345" means that the yield point is 345, "q" means that the steel plate is a bridge plate, "C" represents the grade of the steel plate is C grade, and the steel plate has three grades, namely C, D and E grades. Q345qC steel plate is a bridge steel plate, often used in the manufacture of bridges such as sea-crossing bridges, bridge rigid requirements have high strength, toughness and bear the load and impact of vehicles, but also have good fatigue resistance, a certain low temperature toughness and atmospheric corrosion resistance, bolt welding bridge steel should also have good welding performance and notch sensitivity.
