马鞍山钢铁申请高Mn高Cr汽车用钢及浅晶间氧化层控制方法专利，使得高Mn高Cr汽车用钢晶间氧化层控制良好（晶间氧化层深度≤4.5μm）

金融界2025-07-25

金融界2025年7月25日消息，国家知识产权局信息显示，马鞍山钢铁有限公司申请一项名为“高Mn高Cr汽车用钢及浅晶间氧化层控制方法”的专利，公开号CN120366543A，申请日期为2025年06月。专利摘要显示，本发明公开一种高Mn高Cr汽车用钢及浅晶间氧化层控制方法，包括连铸、热轧、冷却卷取、冷轧及退火工艺，所述退火工艺设置在冷轧工艺之前；所述汽车用钢的化学成分按重量百分比包括Mn：1.00~...

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