Jingye Group successfully developed American standard A709Gr.50 bridge steel.
Recently, Jingye Group successfully trial-produced A709Gr.50 American standard bridge steel (price)for heavy plates, marking a significant technological advancement for the company in the research and development and manufacturing of high-end structural steel, and further consolidating its technological strength in the production of high-end American standard steel.
A709Gr.50 is a key material widely used in large bridges, cross-sea channels, and important steel structure projects. It possesses high strength, excellent low-temperature toughness, and good weldability, placing extremely high demands on the rolling process. The product must not only achieve a precise balance between strength and toughness but also meet stringent shape control and non-destructive testing standards.
To ensure the smooth progress of the trial production, the Jingye Group's technical team deployed the process route and a full-process quality control plan in advance. They implemented meticulous control over key aspects such as heating regime, rolling process, final rolling temperature, and cooling rate to ensure uniform steel plate structure and stable, compliant performance. Simultaneously, they conducted specialized inspections and precise adjustments to core equipment such as the rolling mill roll system and water cooling system, providing strong support for a stable and controllable rolling process。
The successful production of the A709Gr.50 wide plate not only enriches Jingye Group's product portfolio of specialized structural steel but also significantly enhances the company's competitiveness in the domestic and international high-end steel markets. In the future, Jingye Group will continue to benchmark against advanced international standards, providing global customers with superior performance and higher quality services, supporting major engineering projects, and creating greater value for the industry chain.
Tags: Jingye Group, American Standard Bridge Steel, A709Gr.50, High-end Structural Steel, Technological Breakthroughs, Heavy Plate Rolling, Bridge Engineering, Product Development,
