A572 Gr 345 steel VS S690Q mechanical properties

Q370qC, Q370qD, S690Q mechanical properties and Q370qE are structural steel plates for bridges. It is required to have high strength, toughness and to withstand the load and impact of rolling stock, and have good fatigue resistance, certain low temperature toughness and atmospheric corrosion resistance. The steel for tie-welding bridges should also have good welding performance and low notch sensitivity. Used for the production of riveted and bolt-welded road bridges and railway bridges (including cross-sea bridges).

China's widest bar heating furnace was completed and put into production! During the construction of the heating furnace, the technical experts of Shiheng Special Steel and the technical experts of MCC Southern Thermal Engineering Co., Ltd. demonstrated and designed the bar heating furnace with the widest furnace width, the longest billet and the largest output in China. The heating furnace adopts a number of green and intelligent technologies: the wave-shaped roof design is adopted to strengthen the radiation heat exchange in the furnace and improve the heating efficiency.

The selection principle of steel plate for high-rise building is: it can not only make the structure safe and reliable, but also can save steel and reduce the cost. Different use conditions should have different quality requirements. In terms of the mechanical properties of steel such as S690Q mechanical properties, yield point, tensile strength, elongation, cold bending property, impact toughness etc. are the indicators to measure the quality of steel. In the design of steel structure, the appropriate steel should be selected according to the characteristics of the structure. The selection of steel is not only an economic problem, but also related to the safety and service life of the structure.