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:
Jun. 17, 2025
Filed:
Feb. 22, 2023
Nippon Steel Corporation, Tokyo, JP;
NIPPON STEEL CORPORATION, Tokyo, JP;
Abstract
This metallic coated steel includes a steel material and a metallic coating layer. The metallic coating layer has an average chemical composition including Al: 0.2% to less than 4.0%, Mg: more than 4.0% and less than 12.5%, Ca: 0.15% to less than 3.00%, Zn: 65% or more, and impurities. In an any perpendicular cross section (in a thickness direction) in the metallic coating layer, a metallurgical structure observed in a scanning electron microscope observed visual field contains, in terms of area fraction, an MgZnphase: 10 to 40%, an Al—Zn phase: 0 to 15%, an Al phase: (Zn<10%): 0 to 5%, a CaZnphase: 1.0 to 15%, and a total of a [ternary eutectic structure of Al/MgZn/Zn] and a [binary eutectic structure of MgZn/Zn]: 30% or more.