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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 11913099 B1

PDFFull Text
Date of Patent:
Feb. 27, 2024

Filed:

Feb. 23, 2018

Press hardened steel with extremely high strength and method for production

Applicant:

AK Steel Properties, Inc., West Chester, OH (US);

Inventor:

Erik James Pavlina, Lebanon, OH (US);

Assignee:

Cleveland-Cliffs Steel Properties Inc., West Chester, OH (US);

Attorney:

Frost Brown Todd LLP

Primary Examiner:

Nicholas A Wang

Int. Cl.
CPC ...
C22C 38/38 (2006.01); C22C 38/32 (2006.01); C22C 38/22 (2006.01); C22C 38/24 (2006.01); C22C 38/26 (2006.01); C23C 2/28 (2006.01); B32B 15/01 (2006.01); C21D 1/673 (2006.01); C23C 2/06 (2006.01); C23C 2/12 (2006.01); C22C 38/12 (2006.01); C22C 38/04 (2006.01); C22C 38/02 (2006.01); C23C 2/02 (2006.01); C21D 9/46 (2006.01);
U.S. Cl.
CPC ...
C22C 38/38 (2013.01); B32B 15/012 (2013.01); B32B 15/013 (2013.01); C21D 1/673 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/12 (2013.01); C22C 38/22 (2013.01); C22C 38/24 (2013.01); C22C 38/26 (2013.01); C22C 38/32 (2013.01); C23C 2/02 (2013.01); C23C 2/024 (2022.08); C23C 2/0224 (2022.08); C23C 2/06 (2013.01); C23C 2/12 (2013.01); C23C 2/28 (2013.01); C21D 9/46 (2013.01);
Abstract

Press hardened steels exhibit increased strength in the press hardened steel parts without a corresponding decrease in elongation. Substitutional elements are included in the steel composition to increase the strength of martensite through a combination of substitutional solute strengthening and a reduction in softening that results from autotempering. Softening as a result of autotempering is minimized by suppression of the martensite start (Ms) temperature through the alloying. As a result of the increased hardenability in the proposed compositions that results from various additions of manganese, chromium, molybdenum, and niobium, the steel compositions permit a boron-free press hardening steel.

Find Patent Forward Citations

Pavlina, Erik. (2024). Press hardened steel with extremely high strength and method for production (U.S. Patent No. 11913099). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11913099

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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