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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 12129527 B1

PDFFull Text
Date of Patent:
Oct. 29, 2024

Filed:

Mar. 23, 2016

Parts with a bainitic structure having high strength properties and manufacturing process

Applicant:

Arcelormittal, Luxembourg, LU;

Inventors:

Marie-Thérèse Perrot-Simonetta, Neufchef, FR;

Bernard Resiak, Saulny, FR;

Ulrich Voll, Duisburg, DE;

Assignee:

ArcelorMittal, Luxembourg, LU;

Attorney:

Davidson Kappel LLC

Primary Examiner:

Keith Walker

Assistant Examiner:

Catherine P Smith

Int. Cl.
CPC ...
C21D 9/52 (2006.01); C21D 1/18 (2006.01); C21D 6/00 (2006.01); C21D 8/02 (2006.01); C21D 8/06 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/12 (2006.01); C22C 38/22 (2006.01); C22C 38/26 (2006.01); C22C 38/28 (2006.01); C22C 38/32 (2006.01); C22C 38/38 (2006.01); C22C 38/42 (2006.01); C22C 38/44 (2006.01); C22C 38/46 (2006.01); C22C 38/48 (2006.01); C22C 38/50 (2006.01); C22C 38/54 (2006.01); C22C 38/58 (2006.01);
U.S. Cl.
CPC ...
C21D 9/525 (2013.01); C21D 1/18 (2013.01); C21D 6/004 (2013.01); C21D 6/005 (2013.01); C21D 6/008 (2013.01); C21D 8/0263 (2013.01); C21D 8/065 (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 38/12 (2013.01); C22C 38/22 (2013.01); C22C 38/26 (2013.01); C22C 38/28 (2013.01); C22C 38/32 (2013.01); C22C 38/38 (2013.01); C22C 38/42 (2013.01); C22C 38/44 (2013.01); C22C 38/46 (2013.01); C22C 38/48 (2013.01); C22C 38/50 (2013.01); C22C 38/54 (2013.01); C22C 38/58 (2013.01); C21D 2211/001 (2013.01); C21D 2211/002 (2013.01); C21D 2211/005 (2013.01);
Abstract

The present invention provides a part having a composition including, with the contents being expressed in weight-percent, 0.10≤C≤0.30, 1.6≤Mn≤2.1, 0.5≤Cr≤1.7, 0.5≤Si≤1.0, 0.065≤Nb≤0.15, 0.0010≤B≤0.0050, 0.0010≤N≤0.0130, 0≤Al≤0.060, 0≤Mo≤1.00, 0≤Ni≤1.0, 0.01≤Ti≤0.07, 0≤V≤0.3, 0≤P≤0.050, 0.01≤S≤0.1, 0≤Cu≤0.5, 0≤Sn≤0.1. A balance of the composition includes iron and unavoidable impurities resulting from the production method. The microstructure includes, in surface proportions, from 100% to 70% bainite, less than 30% residual austenite, and less than 5% ferrite. A manufacturing method is also provided.

Find Patent Forward Citations

Perrot-Simonetta, Marie-Thérèse. (2024). Parts with a bainitic structure having high strength properties and manufacturing process (U.S. Patent No. 12129527). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12129527

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

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