Invention Grant
- Patent Title: Hot-rolled steel sheet, cold-rolled steel sheet, galvanized steel sheet, and methods of manufacturing the same
- Patent Title (中): 热轧钢板，冷轧钢板，镀锌钢板及其制造方法
-
Application No.: US13811902Application Date: 2011-07-27
-
Publication No.: US09273370B2Publication Date: 2016-03-01
- Inventor: Nobuhiro Fujita , Kunio Hayashi , Riki Okamoto , Manabu Takahashi , Tetsuo Kishimoto , Hiroshi Yoshida
- Applicant: Nobuhiro Fujita , Kunio Hayashi , Riki Okamoto , Manabu Takahashi , Tetsuo Kishimoto , Hiroshi Yoshida
- Applicant Address: JP Tokyo
- Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
- Current Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2010-169230 20100728; JP2010-169627 20100728; JP2010-169670 20100728; JP2010-204671 20100913; JP2011-048236 20110304; JP2011-048246 20110304; JP2011-048253 20110304; JP2011-048272 20110304
- International Application: PCT/JP2011/067070 WO 20110727
- International Announcement: WO2012/014926 WO 20120202
- Main IPC: C22C38/58
- IPC: C22C38/58 ; C22C38/54 ; C22C38/52 ; C21D8/02 ; C23C2/06 ; C23C2/28 ; C22C38/00 ; C22C38/04 ; B21B35/00 ; C22C38/02 ; C22C38/06 ; C22C38/08 ; C22C38/10 ; C22C38/12 ; C22C38/14 ; C22C38/16 ; C22C38/18 ; C22C38/20 ; C22C38/22 ; C22C38/24 ; C22C38/26 ; C22C38/28 ; C22C38/30 ; C22C38/32 ; C22C38/34 ; C22C38/38 ; C22C38/40 ; C22C38/42 ; C22C38/44 ; C22C38/46 ; C22C38/48 ; C22C38/50 ; C23C2/02 ; C25D5/36 ; C23C2/40
Abstract:
A hot-rolled steel sheet has an average value of the X-ray random intensity ratio of a {100} to {223} orientation group at least in a sheet thickness central portion that is in a sheet thickness range of ⅝ to ⅜ from a steel sheet surface of 1.0 to 6.0, an X-ray random intensity ratio of a {332} crystal orientation of 1.0 to 5.0, rC which is an r value in a direction perpendicular to a rolling direction of 0.70 to 1.10, and r30 which is an r value in a direction that forms an angle of 30° with respect to the rolling direction of 0.70 to 1.10.
Public/Granted literature
Information query
