海洋工程用H型钢横向冲击韧性提升研究

摘要

In view of the unqualified low temperature transverse impact toughness of offshore H-beam in Laiwu steel group , the main influence factors were analyzed .By optimizing rolling process , the banded microstructure was improved ,-20℃transverse impact toughness of offshore H-beam was highly improved .%针对莱钢海洋工程用H型钢低温横向冲击韧性不合格的问题，分析了主要影响因素，通过优化生产工艺改善了成品的带状组织，使得H型钢的-20℃横向冲击韧性得到大幅提升。