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:
Jan. 18, 2022
Filed:
Dec. 02, 2020
Applicant:
Hyundai Steel Company, Incheon, KR;
Inventors:
Sung Min Kim, Incheon, KR;
Hye Rim Choi, Incheon, KR;
Assignee:
Hyundai Steel Company, Incheon, KR;
Primary Examiner:
Int. Cl.
CPC ...
B32B 15/10 (2006.01); B32B 15/01 (2006.01); C23C 2/12 (2006.01); C22C 21/00 (2006.01); C23C 2/40 (2006.01); C22C 38/00 (2006.01); C22C 38/06 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/14 (2006.01);
U.S. Cl.
CPC ...
B32B 15/012 (2013.01); C22C 21/00 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/14 (2013.01); C23C 2/12 (2013.01); C23C 2/40 (2013.01); Y10T 428/12757 (2015.01);
Abstract
Disclosed is a steel sheet for hot press forming, which includes: a base steel sheet; and a plating layer disposed on the base steel sheet and including a diffusion layer and a surface layer that are sequentially laminated, wherein the diffusion layer includes an Fe—Al alloy layer and an Fe—Al intermetallic compound layer that are sequentially disposed on the base steel sheet and each include silicon, and an area fraction of the Fe—Al intermetallic compound layer with respect to the diffusion layer is 84.5% to 98.0%.