Manufacturing of the YS180 MPa Grade Hot Dipping Galvanizing BH-Steel H180BD for Automotive Ezposed Panels

摘要：

Considering the metallurgy characteristic of baking hardening steels,the YS180 MPa grade baking hardening steel was developed by controlling chemical composition and optimizing smelting,hot-rolling and galvanizing processes. The results show the steel,with the 180-240 MPa yield strength,300-360 MPa tensile strength,R≥1.5,N≥0.16 and BH2 ≥30 MPa,has the excellent formability and good bakehardening behavior and easing galvanizing property of uniform coating. After aging 145 days,the tensile curve of the steel is still smooth,and except the decreasing of R value,other mechanical properties remain constant. The steel is well used in automobiles for exposed panels with excellent aging behavior within room temperature.

关键词： baking hardening steel microstructure properties aging bellavior

作者: Hu Yinping Li Guobin Duan Xiaoping Gu Jigang Cheng Jishun

作者单位: Research and Development Center of WISCO,Wuhan 430080,China No.2 Cold Rolling Mill Pant,Wuhan Iron and Steel Co.,Ltd.,Wuhan 430083,China No.3 Steelmaking Pant,Wuhan Iron and Steel Co.,Ltd.,Wuhan 430083,China

会议类型: 国际会议

会议名称: 2009 International Symposium on Automobile Steel(2009年汽车用钢生产及应用技术国际研讨会)

会议地点: 大连

会议语种:英文

页码: 322-326

在线出版日期: 2009-09-06（万方平台首次上网日期，不代表论文的发表时间）