Recently, Jingye Group successfully rolled wide plate A709Gr.50 American standard bridge steel, achieving another important technological breakthrough in the research and development and manufacturing of high-end structural steel, marking a further enhancement of the Group's technical strength in the production of American standard high-end steel.
A709Gr.50 American standard bridge steel is a key material used in large bridges, cross-sea passages and high-end steel structures. It combines high strength, excellent low-temperature toughness and good weldability. It has strict requirements for the rolling process, which requires a precise balance of strength and toughness, while strictly meeting various standards for plate shape control and non-destructive testing.
To ensure the orderly and efficient progress of the trial rolling, the technical team formulated a process implementation path and a full-process quality control plan in advance. They meticulously controlled the heating system, optimized the rolling process, and precisely adjusted the final rolling temperature and cooling rate to ensure uniform steel plate microstructure and stable, compliant performance. Simultaneously, they conducted specialized inspections and precise adjustments to key equipment such as the rolling mill roll system and water cooling system to ensure stable and controllable operation throughout the rolling process, laying a solid foundation for a successful trial rolling. Customer feedback: "Jingye Group's products exhibit stable and excellent performance, with a smooth and flat surface and high straightness, fully meeting the requirements for steel application!"
The successful production of the A709Gr. 50 wide plate further enriches Jingye Group's product portfolio of specialized structural steel, effectively enhancing the company's core competitiveness in the steel market and injecting strong momentum into the group's transformation towards high-end and international products. In the future, Jingye Group will meet the needs of global customers with higher standards and superior performance, creating greater value for them.