This article presents the research and manufacture of BQ355 plate steel for bridges by adopting the processes of converter-melting, double ladle-refining (i.e.RH+KIP), controlled-rolling and etc.

• 本文详述了宝钢采用转炉冶炼,双重炉外精炼(RH+KiP),控轧等工艺研制生产BQ355桥用钢板钢的情况。