客服热线:18202992950

HIGH STRENGTH WITH A HIGH RATIO OF YIELD STRENGTH TO YIELD STRENGTH OF STEEL SHEET, HIGH STRENGTH W 发明申请

2023-08-29 4470 237K 0

专利信息

申请日期 2025-07-16 申请号 RU2012143206
公开(公告)号 RU2012143206A 公开(公告)日 2014-04-20
公开国别 RU 申请人省市代码 全国
申请人 ДжФЕ СТИЛ КОРПОРЕЙШН
简介 PROBLEM TO BE SOLVED : To provide a high yield ratio type high strength steel sheet having high strength and a high yield ratio and having excellent formability, and the like.SOLUTION : A high yield ratio type high strength steel sheet has a componential composition including, by mass, 0.03 to 0.20% C, ≤1.0% Si, >1.5 to 3.0% Mn, ≤0.10% P, ≤0.05% S, ≤0.10% Al and ≤0.010% N, and including one or more kinds selected from Ti, Nb and V by 0.010 to 1.000% in total content and the balance Fe with inevitable impurities, and has a structure including ferrite and a second phase as a microstructure. The ferrite has an area ratio of ≥50% and the average crystal grain size of ≤18 μm. The second phase includes martensite of 1 to <7% by area ratio, and the thickness of a band-shaped structure formed by the second phase satisfies a prescribed relational expression.


您还没有登录,请登录后查看下载地址


反对 0举报 0 收藏 0 打赏 0评论 0
下载排行
网站首页  |  关于我们  |  联系方式  |  使用协议  |  版权隐私  |  网站地图  |  排名推广  |  广告服务  |  积分换礼  |  网站留言  |  RSS订阅  |  违规举报  |  京ICP备2021025988号-4