Q345qDNHY-1 weathering bridge steel plate, 1Ni weathering bridge steel plate, Q345qDNHY-1 material

Q345qDNHY-1 weathering bridge steel plate, 1Ni weathering bridge steel plate, Q345qDNHY-1 material

Q345qDNHY-1 weathering bridge steel plate, 1Ni weathering bridge steel plate, Q345qDNHY-1 material analysis

Q345qDNHY-I is a 1Ni weathering bridge steel plate, and Q345qDNHY-I marine environment resistant bridge steel plate has achieved mass production in China earlier

Q345qDNHY-I steel plate fixed rolling: Wugang to the sun

China's first cross-sea high-speed railway, the Fuzhou-Xiamen high-speed railway, has been laid through the whole line. In this key project, Wugang has supplied more than 10,000 tons of high-quality steel plates for the Quanzhou Bay Bridge, a key control project of the Fuzhou-Xiamen high-speed railway, of which 3,000 tons of Ni Q345qDNHY-I weathering bridge steel plates support its key parts.

Q345qDNHY-I Chemical Composition:

C：≤0.11

Si：0.15~0.5

Mn：1.1~1.5

Nb：0.01~0.1

V：0.01~0.1

Ti： 0.006~0.03

Cr：0.4~0.7

Ni：0.3~0.4

Cu：0.25~0.5

Mo：≤0.1

N：≤0.008

ALs：0.015~0.05

Q345qDNHY-1 steel plate is in hot-rolled, normalized, or thermomechanically rolled state.

The thickness of Q345qDNHY-1 steel plate is not more than 150mm, and the yield ratio is not more than 0.85. Q34sqDNH steel plate is a steel plate mainly used to erect railway or highway bridges.

The Quanzhou Bay Bridge is located in Quanzhou City, with a total length of 20 kilometers, of which 9 kilometers are under construction. Due to the complex hydrological environment at sea, it is in the environmental conditions of wind force above level 6 for most of the year, especially the key parts of the bridge steel requirements are extremely high. 1Ni weathering bridge steel plate is recognized in the industry as the "new century green environmental protection steel", resistant to marine climate corrosion, can be used without coatings, reduce the pollution caused by anti-corrosion coating and maintenance treatment in the later stage of the sea-crossing bridge, and has a variety of characteristics such as high toughness, which is used in construction machinery, marine facilities and other fields, and has broad market prospects.