超低碳氮高铜奥氏体不锈钢及其冷轧钢带和制造方法
By controlling ultra-low carbon and nitrogen content and rationally combining other elements in austenitic stainless steel, and combining specific smelting and rolling processes, the cracking problem in the hot rolling process of high-copper austenitic stainless steel has been solved, achieving improved material stability and finished product performance, making it suitable for deep drawing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANXI TAIGANG STAINLESS STEEL CO LTD
- Filing Date
- 2025-05-07
- Publication Date
- 2026-07-17
AI Technical Summary
Existing high-copper-content austenitic stainless steel is prone to cracking defects during hot rolling, which affects the surface quality of the material and the corrosion resistance of the finished product. In addition, its processing performance is uneven, making it difficult to meet the requirements of deep drawing.
By controlling ultra-low carbon and nitrogen content and rationally combining other elements, and combining electric furnace smelting, AOD furnace and LF refining processes, ultra-low carbon and nitrogen high copper austenitic stainless steel is prepared. Through specific hot rolling and cold rolling processes, heating temperature, holding time and solution treatment are controlled to ensure the hot rolling stability and finished product performance of the material.
This technology improves the hot rolling stability and finished product performance of high-copper austenitic stainless steel, reduces crack defects, and enhances the material's plasticity and elongation, thus meeting the requirements for deep drawing.
Smart Images
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