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:
Mar. 04, 2025
Filed:
Nov. 11, 2022
Nippon Steel Corporation, Tokyo, JP;
NIPPON STEEL CORPORATION, Tokyo, JP;
Abstract
To obtain a welded member using a steel sheet less expensive than a pure Ni sheet as a raw material and excellent in corrosion resistance. A welded member according to the present invention is made by connecting a Ni plated steel sheet having a Ni plating layer and a Fe—Ni diffusion alloy layer and another steel sheet via a welded part, wherein: a Ni concentration is 70 mass % or more and a Fe concentration is 30 mass % or less in a surface layer of each of a toe, a toe near area, and the welded part; and a thickness of the Fe—Ni diffusion alloy layer is 0.5 to 1.5 μm and a total thickness of the Ni plating layer and the Fe—Ni diffusion alloy layer is 2.7 to 14.0 μm at a non-welded part, and a total concentration of S and C in the Ni plating layer at the non-welded part is less than 20 ppm.