Invention Grant
- Patent Title: High strength annealed steel products
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Application No.: US16119742Application Date: 2018-08-31
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Publication No.: US11268162B2Publication Date: 2022-03-08
- Inventor: David Paul Hoydick , Eduardo Augusto Silva , Matthew Michael McCosby
- Applicant: UNITED STATES STEEL CORPORATION
- Applicant Address: US PA Pittsburgh
- Assignee: UNITED STATES STEEL CORPORATION
- Current Assignee: UNITED STATES STEEL CORPORATION
- Current Assignee Address: US PA Pittsburgh
- Agency: Leech Tishman Fuscaldo & Lampl
- Agent Alan G. Towner
- Main IPC: B32B15/01
- IPC: B32B15/01 ; B32B15/04 ; B32B15/18 ; C23C28/02 ; C23C2/40 ; C23C2/06 ; C23C2/02 ; C22C38/54 ; C22C38/40 ; C22C38/18 ; C22C38/16 ; C22C38/14 ; C22C38/12 ; C22C38/08 ; C22C38/06 ; C22C38/04 ; C22C38/02 ; C22C38/00 ; C21D8/02 ; C21D1/20 ; C21D1/22 ; C21D1/78 ; C21D1/26 ; C21D1/25 ; C21D9/46 ; C25D3/22 ; C25D5/36 ; C22C38/26 ; C22C38/28 ; C21D1/18 ; C21D6/00

Abstract:
The present invention provides steel sheet products having controlled compositions that are subjected to two-step annealing processes to produce sheet products having desirable microstructures and favorable mechanical properties such as high strength and ultra-high formability. Steels processed in accordance with the present invention exhibit combined ultimate tensile strength and total elongation (UTS·TE) properties of greater than 25,000 MPa-%. Steels with these properties fall into the category of Generation 3 advanced high strength steels, and are highly desired by various industries including automobile manufacturers.
Public/Granted literature
- US20190062864A1 HIGH STRENGTH ANNEALED STEEL PRODUCTS Public/Granted day:2019-02-28
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