logo

For the Inventor, By the Inventor

The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11993823 B1

PDFFull Text
Date of Patent:
May. 28, 2024

Filed:

Aug. 19, 2019

High strength annealed steel products and annealing processes for making the same

Applicant:

United States Steel Corporation, Pittsburgh, PA (US);

Inventors:

David Paul Hoydick, Pittsburgh, PA (US);

Eduardo Augusto Silva, Murrysville, PA (US);

Matthew Michael McCosby, New Castle, PA (US);

Assignee:

United States Steel Corporation, Pittsburgh, PA (US);

Attorneys:

Alan G. Towner

Leech Tishman Fuscaldo & Lampl

Primary Examiner:

Jie Yang

Int. Cl.
CPC ...
C21D 9/46 (2006.01); B32B 15/01 (2006.01); B32B 15/04 (2006.01); B32B 15/18 (2006.01); C21D 1/20 (2006.01); C21D 1/22 (2006.01); C21D 1/25 (2006.01); C21D 1/26 (2006.01); C21D 1/78 (2006.01); C21D 8/02 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/08 (2006.01); C22C 38/12 (2006.01); C22C 38/14 (2006.01); C22C 38/16 (2006.01); C22C 38/18 (2006.01); C22C 38/40 (2006.01); C22C 38/54 (2006.01); C23C 2/02 (2006.01); C23C 2/06 (2006.01); C23C 2/28 (2006.01); C23C 2/40 (2006.01); C23C 28/02 (2006.01); C25D 3/22 (2006.01); C25D 5/36 (2006.01);
U.S. Cl.
CPC ...
C21D 9/46 (2013.01); B32B 15/013 (2013.01); B32B 15/043 (2013.01); B32B 15/18 (2013.01); C21D 1/20 (2013.01); C21D 1/22 (2013.01); C21D 1/25 (2013.01); C21D 1/26 (2013.01); C21D 1/78 (2013.01); C21D 8/0247 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/008 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/08 (2013.01); C22C 38/12 (2013.01); C22C 38/14 (2013.01); C22C 38/16 (2013.01); C22C 38/18 (2013.01); C22C 38/40 (2013.01); C22C 38/54 (2013.01); C23C 2/0224 (2022.08); C23C 2/06 (2013.01); C23C 2/28 (2013.01); C23C 2/40 (2013.01); C23C 28/021 (2013.01); C23C 28/025 (2013.01); C25D 3/22 (2013.01); C25D 5/36 (2013.01); C21D 8/0236 (2013.01); C21D 8/0278 (2013.01); C21D 2211/001 (2013.01); C21D 2211/005 (2013.01); C21D 2211/008 (2013.01);
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. The steel sheet products may be cold rolled or hot rolled. Steels processed in accordance with the present invention exhibit favorable combined ultimate tensile strength and total elongation (UTS•TE) properties, and may fall into the category of Generation 3 advanced high strength steels, desirable in various industries including automobile manufacturers.

Find Patent Forward Citations

Loading…