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:
May. 13, 2025
Filed:
Sep. 25, 2019
Arcelormittal, Luxembourg, LU;
Eva Diaz Gonzalez, Deinze, BE;
Lieven Bracke, Sinaai, BE;
Tom Waterschoot, Lokeren, BE;
Joost Destrycker, Zele, BE;
ArcelorMittal, Luxembourg, LU;
Abstract
A hot rolled steel product having a composition including in percentage by weight: 0.06%≤C≤0.18%, 0.01%≤Ni≤0.6%, 0.001%≤Cu≤2%, 0.001%≤Cr≤2%, 0.001%≤Si≤0.8%, 0%≤N≤0.008%, 0%≤P≤0.03%, 0%≤S≤0.03%, 0.001%≤Mo≤0.5%, 0.001%≤Nb≤0.1%, 0.001%≤V≤0.5%, 0.001%≤Ti≤0.1% and one or more following optional elements 0.2%≤Mn≤2%, 0.005%≤Al≤0.1%, 0%≤B≤0.003%, 0%≤Ca≤0.01%, 0%≤Mg≤0.010% the remainder composition being composed of iron and unavoidable impurities caused by processing, such product having a tertiary scale layer including, in area fraction, a total amount of at least 50% of magnetite and ferrite wherein ferrite is at least 25%, 0% to 50% of wustite, and 0% to 10% of hematite, such scale layer having a thickness between 5 microns and 40 microns.