High-strength weldable 700mpa steel plate and method of manufacturing and use thereof
High-strength, easily weldable 700MPa steel plates treated with specific chemical compositions and processes have solved the problems of strength-toughness matching and unstable welding performance of high-strength steel plates, achieving the effects of simplified production processes and reduced costs, and are suitable for the field of engineering equipment.
Patent Information
- Application Number
- CN202311592367.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-27
- Publication Date
- 2026-05-15
- Estimated Expiration
- 2043-11-27
AI Technical Summary
In existing technologies, the strength and toughness matching and welding performance of high-strength steel plates are unstable, the production process is complex and costly, resulting in high welding difficulty and making it difficult to meet the needs of engineering equipment.
High-strength, easily weldable 700MPa steel plates with specific chemical compositions are produced by decarburizing in an LF refining furnace, segmented rolling, and controlled cooling treatment, which simplifies the production process, improves the strength and toughness of the steel plates, and reduces the difficulty of welding.
It provides 700MPa steel plates with high strength and excellent weldability, which reduces production costs, expands the application scope of engineering equipment, and promotes the development of the equipment field.