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.:
Date of Patent:
Sep. 15, 2026
Filed:
Dec. 23, 2021
Applicant:
Voestalpine Stahl Gmbh, Linz, AT;
Inventors:
Michael Schwarzenbrunner, Walding, AT;
Katharina Steineder, Linz, AT;
Assignee:
VOESTALPINE STAHL GMBH, Linz, AT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C 38/02 (2006.01); C21D 1/18 (2006.01); C21D 1/76 (2006.01); C21D 1/84 (2006.01); C21D 6/00 (2006.01); C21D 8/02 (2026.01); C21D 8/021 (2026.01); C21D 8/0221 (2026.01); C21D 8/0247 (2026.01); C21D 8/0278 (2026.01); C21D 9/52 (2006.01); C22C 38/00 (2006.01); C22C 38/06 (2006.01); C22C 38/38 (2006.01); C23C 2/02 (2006.01); C23C 2/06 (2006.01); C23C 2/28 (2006.01); C23C 2/40 (2006.01);
U.S. Cl.
CPC ...
C23C 2/024 (2022.08); C21D 1/18 (2013.01); C21D 1/76 (2013.01); C21D 1/84 (2013.01); C21D 6/002 (2013.01); C21D 6/005 (2013.01); C21D 6/008 (2013.01); C21D 8/02 (2013.01); C21D 8/021 (2013.01); C21D 8/0226 (2013.01); C21D 8/0236 (2013.01); C21D 8/0263 (2013.01); C21D 8/0278 (2013.01); C21D 9/52 (2013.01); C22C 38/001 (2013.01); C22C 38/02 (2013.01); C22C 38/06 (2013.01); C22C 38/38 (2013.01); C23C 2/02 (2013.01); C23C 2/0222 (2022.08); C23C 2/0224 (2022.08); C23C 2/06 (2013.01); C23C 2/28 (2013.01); C23C 2/40 (2013.01); C21D 2211/001 (2013.01); C21D 2211/002 (2013.01); C21D 2211/005 (2013.01); C21D 2211/008 (2013.01);
Abstract
A zinc or zinc-alloy coated rolled steel strip or sheet includes (in wt. %) 0.08-0.28 C, 1.4-4.5 Mn, 0.01-0.5 Cr, 0.01-2.5 Si, 0.01-2.0 Al. The steel has a tensile strength of 950-1550 MPa, a yield strength of 350-1400 MPa, a yield ratio≥0.35, and Ri/t≤4. The microstructure includes ≥40 tempered martensite+bainite, ≤30 fresh martensite, 5-20 retained austenite, and ≤35 polygonal ferrite. The hydrogen concentration is less than 0.2 ppm in the steel.