Invention Grant
- Patent Title: Cold rolled steel sheet for drawn can and method for manufacturing same
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Application No.: US16606118Application Date: 2018-04-19
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Publication No.: US10907236B2Publication Date: 2021-02-02
- Inventor: Masaharu Oka , Nobusato Kojima , Yuta Dairokuno , Michihiro Nono
- Applicant: NIPPON STEEL CORPORATION
- Applicant Address: JP Tokyo
- Assignee: NIPPON STEEL CORPORATION
- Current Assignee: NIPPON STEEL CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2017-083214 20170419
- International Application: PCT/JP2018/016191 WO 20180419
- International Announcement: WO2018/194135 WO 20181025
- Main IPC: B32B15/01
- IPC: B32B15/01 ; C21D9/46 ; C21D8/02 ; C21D6/00 ; C22C38/14 ; C22C38/12 ; C22C38/06 ; C22C38/04 ; C22C38/02 ; C22C38/00 ; C22C38/60 ; B32B15/04 ; C22C38/48 ; B32B1/08 ; C22C38/26 ; B32B15/18 ; C23C2/28 ; C23C28/02 ; C23C30/00 ; C23C2/04 ; C23C2/08 ; C23C2/40

Abstract:
A steel sheet for a drawn can has a predetermined chemical composition and has a ferrite single-phase structure with a crystal grain size number of 11.0 or more, the sheet thickness is 0.15 to 0.50 mm, in an L direction of the steel sheet after an ageing treatment at 100° C. for one hour, an yield strength YP is 220 to 290 MPa, a tensile strength TS is 330 to 390 MPa, a total elongation EL is 32% or more, an yield point elongation YP-EL is 0%, an average plastic strain ratio rm is more than 1.35, and an in-plane anisotropy Δr is −0.30 to +0.15.
Public/Granted literature
- US20200048730A1 COLD ROLLED STEEL SHEET FOR DRAWN CAN AND METHOD FOR MANUFACTURING SAME Public/Granted day:2020-02-13
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