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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 10633727 B1

PDFFull Text
Date of Patent:
Apr. 28, 2020

Filed:

May. 20, 2016

Low alloy third generation advanced high strength steel

Applicant:

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

Inventors:

Luis Gonzalo Garza-Martinez, Wyoming, OH (US);

Grant Aaron Thomas, Liberty Township, OH (US);

Assignee:

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

Attorney:

Frost Brown Todd LLC

Primary Examiner:

Colin W Slifka

Int. Cl.
CPC ...
C21D 11/00 (2006.01); C21D 1/26 (2006.01); C21D 6/00 (2006.01); C21D 9/52 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/12 (2006.01); C21D 8/02 (2006.01);
U.S. Cl.
CPC ...
C22C 38/06 (2013.01); C21D 1/26 (2013.01); C21D 6/005 (2013.01); C21D 8/0263 (2013.01); C21D 9/52 (2013.01); C21D 11/00 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/12 (2013.01); C21D 6/008 (2013.01); C21D 8/0226 (2013.01); C21D 2211/001 (2013.01); C21D 2211/005 (2013.01);
Abstract

A high strength steel comprises, during intercritical annealing, about 20-80% volume ferrite and 20-80% austenite, and wherein the Ms temperature calculated for the austenite phase during intercritical anneal ≤100° C. The high strength steel exhibits a tensile elongation of at least 20% and an ultimate tensile strength of at least 880 MPa. The high strength steel may comprise 0.20-0.30 wt % C, 3.0-5.0 wt % Mn, with Al and Si additions such that the optimum intercritical temperature is above 700° C.

Find Patent Forward Citations

Garza-Martinez, Luis. (2020). Low alloy third generation advanced high strength steel (U.S. Patent No. 10633727). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10633727

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

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