| 发明名称 |
GALVANNEALED STEEL SHEET WITH EXCELLENT ANTI-POWDERING PROPERTY (AS AMENDED) |
| 摘要 |
Provided is a galvannealed steel sheet with excellent anti-powdering property when press forming is performed, without controlling the contents of chemical elements in steel which are effective for strengthening a steel sheet, such as Si and P, to be low in order to achieve required material properties and without increasing cost due to, for example, processes being complicated. A galvannealed steel sheet with excellent anti-powdering property has a coated layer taking in grains of a base steel sheet such that the grains constitute 2.0% or more and 15.0% or less of the coated layer in terms of cross section area ratio. |
| 申请公布号 |
US2015184273(A1) |
申请公布日期 |
2015.07.02 |
| 申请号 |
US201314408123 |
申请日期 |
2013.06.18 |
| 申请人 |
JFE STEEL CORPORATION |
发明人 |
Makimizu Yoichi;Suzuki Yoshitsugu;Nagano Hideki;Nagataki Yasunobu |
| 分类号 |
C23C2/06;C21D9/46;C22C38/02;C22C38/38;C22C38/04;C21D1/26;C23C2/40 |
主分类号 |
C23C2/06 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A galvannealed steel sheet with excellent anti-powdering property, the steel sheet having a coated layer taking in grains of a base steel sheet such that the grains constitute 2.0% or more and 15.0% or less of the coated layer in terms of cross section area ratio. |
| 地址 |
Chiyoda-ku, Tokyo JP |
