This paper briefly introduces the development of hot-rolled ultrafine grained steel strip 400MPa AN420 for automobile structures, this steel sheet is produced with the advanced technology of new generation steel upon the C-Mn steel.

• 本文介绍了鞍钢应用超细晶钢先进技术在普通C-Mn钢基础上,实际生产的热轧汽车结构用400MPa级AN420钢的热轧带钢开发研制情况。