Invention Grant
- Patent Title: Method for producing an ultra high strength coated or not coated steel sheet and obtained sheet
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Application No.: US15323232Application Date: 2014-07-03
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Publication No.: US10378077B2Publication Date: 2019-08-13
- Inventor: Olga A. Girina , Damon Panahi
- Applicant: ArcelorMittal
- Applicant Address: LU Luxembourg
- Assignee: ArcelorMittal
- Current Assignee: ArcelorMittal
- Current Assignee Address: LU Luxembourg
- Agency: Davidson, Davidson & Kappel, LLC
- International Application: PCT/IB2014/002379 WO 20140703
- International Announcement: WO2016/001707 WO 20160107
- Main IPC: C21D9/46
- IPC: C21D9/46 ; C21D8/02 ; C21D1/18 ; C25D5/36 ; C25D7/00 ; C25D3/22 ; B32B15/01 ; C22C38/38 ; C22C38/34 ; C22C38/22 ; C22C38/06 ; C23C2/04 ; B32B15/04 ; C23C30/00 ; C23C2/12 ; B32B15/18 ; B32B15/00 ; C21D1/25 ; C22C38/00 ; C22C38/02 ; C22C38/04 ; C21D8/04 ; C23C2/28 ; C25D7/06 ; C22C38/26 ; C23C2/06 ; C23C2/40
Abstract:
A method for producing a cold rolled steel sheet having a tensile strength ≥1470 MPa and a total elongation TE≥19%, the method comprising the steps of annealing at an annealing temperature AT≥Ac3 a non-treated steel sheet whose chemical composition contains in weight %: 0.34%≤C≤0.40%, 1.50%≤Mn≤2.30%, 1.50≤Si≤2.40%, 0%
Public/Granted literature
- US20170145536A1 Method for Producing an Ultra High Strength Coated or Not Coated Steel Sheet and Obtained Sheet Public/Granted day:2017-05-25
Information query
