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:
Feb. 17, 2026
Filed:
May. 12, 2020
Arcelormittal, Luxembourg, LU;
Hyun Jo Jun, Clinton, NJ (US);
Narayan Pottore, Munster, IN (US);
Dongwei Fan, Munster, IN (US);
Xiang Chen, Oak Ridge, TN (US);
Oleg Yakubovsky, Las Cruces, NM (US);
ArcelorMittal, Luxembourg, LU;
Abstract
A cold rolled and coated steel sheet having a composition including of the following elements, expressed in percentage by weight: 0.140%≤Carbon≤0.2%, 1.5%≤Manganese≤2.15%, 0.5%≤Silicon≤0.8%, 0.4%≤Aluminum≤0.8%, 0%≤Phosphorus≤0.09%, 0%≤Sulfur≤0.09%, 0%≤Nitrogen≤0.09%, 0.01%≤Niobium≤0.1%, 0.01%≤Titanium≤0.1%, and can contain one or more of the following optional elements 0%≤Chromium≤0.1%, 0%≤Nickel≤3%, 0%≤Calcium≤0.005%, 0%≤Copper≤2%, 0%≤Molybdenum≤0.5%, 0%≤Vanadium≤0.1%, 0%≤Boron≤0.003%, 0%≤Cerium≤0.1%, 0%≤Magnesium≤0.010%, 0%≤Zirconium≤0.010% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of the steel sheet including in area fraction, 40 to 60% Inter-critical Ferrite, 25 to 45% Transformed Ferrite, 8% to 20% and 5% to 20% Fresh Martensite, 0 to 10% Bainite, wherein the cumulated amount of Inter-critical and Transformed Ferrite is between 75% and 85%.