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 12319992 B1

PDFFull Text
Date of Patent:
Jun. 03, 2025

Filed:

Nov. 28, 2019

Cold rolled steel sheet

Applicant:

Voestalpine Stahl Gmbh, Linz, AT;

Inventors:

Florian Winkelhofer, Kirchberg-Thening, AT;

Thomas Hebesberger, Pasching, AT;

Martin Gruber, Pregarten, AT;

Johannes Rehrl, St. Marien, AT;

Assignee:

VOESTALPINE STAHL GMBH, Linz, AT;

Attorney:

KARCESKI IP LAW, PLLC

Primary Examiner:

Anthony M Liang

Int. Cl.
CPC ...
C22C 38/58 (2006.01); C21D 8/02 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/06 (2006.01); C22C 38/42 (2006.01); C22C 38/46 (2006.01); C22C 38/48 (2006.01); C22C 38/50 (2006.01); C22C 38/54 (2006.01);
U.S. Cl.
CPC ...
C22C 38/58 (2013.01); C21D 8/0205 (2013.01); C21D 8/0236 (2013.01); C22C 38/002 (2013.01); C22C 38/008 (2013.01); C22C 38/02 (2013.01); C22C 38/06 (2013.01); C22C 38/42 (2013.01); C22C 38/46 (2013.01); C22C 38/48 (2013.01); C22C 38/50 (2013.01); C22C 38/54 (2013.01); C21D 2211/001 (2013.01); C21D 2211/002 (2013.01); C21D 2211/005 (2013.01); C21D 2211/008 (2013.01);
Abstract

The invention relates to a cold rolled steel sheet having a composition consisting of (in wt. %): C 0.15-0.25; Si 0.5-1.6; Mn 2.2-2.8; Cr≤0.8; Mo≤0.2; Al 0.03-1.0; Nb≤0.04; V≤0.04; Ti 0.02-0.04; B 0.001-0.005; balance Fe apart from impurities, wherein the impurity contents of Cu and Ni are limited to ≤0.15, the cold rolled steel has a multiphase microstructure comprising a matrix of bainitic ferrite and ≤10 vol. % polygonal ferrite and the tensile strength (R) is 980-1500 MPa.

Find Patent Forward Citations

Winkelhofer, Florian. (2025). Cold rolled steel sheet (U.S. Patent No. 12319992). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12319992

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

Loading…