Plated Steel Sheet

Abstract: Provided is a plated steel sheet characterized by comprising a base steel sheet and a plating layer that is formed on the surface of the base steel sheet, wherein the plating layer has a prescribed chemical composition, the depth, in the sheet thickness direction from the interface between the base steel sheet and the plating layer, where the area fraction of pearlite is 0-20% is 3-100 µm, the area fraction of pearlite having a circle-equivalent diameter of 5 µm or more is 0-30% at the depth where the area fraction of pearlite is 0-20%, and the adhesion amount of the plating layer is 40 g/m2 or more per surface.

Patent Information

Application #

Filing Date

01 July 2025

Publication Number

28/2025

Publication Type

INA

Invention Field

METALLURGY

Status

Email

Parent Application

Applicants

NIPPON STEEL CORPORATION

6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071

Inventors

1. HAYASHIDA, Shota

c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071

2. MITSUNOBU, Takuya

c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071

3. TAKEBAYASHI, Hiroshi

c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071

Specification

Documents

Application Documents

#	Name	Date
1	202517062678-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [01-07-2025(online)].pdf	2025-07-01
2	202517062678-STATEMENT OF UNDERTAKING (FORM 3) [01-07-2025(online)].pdf	2025-07-01
3	202517062678-REQUEST FOR EXAMINATION (FORM-18) [01-07-2025(online)].pdf	2025-07-01
4	202517062678-PROOF OF RIGHT [01-07-2025(online)].pdf	2025-07-01
5	202517062678-PRIORITY DOCUMENTS [01-07-2025(online)].pdf	2025-07-01
6	202517062678-POWER OF AUTHORITY [01-07-2025(online)].pdf	2025-07-01
7	202517062678-FORM 18 [01-07-2025(online)].pdf	2025-07-01
8	202517062678-FORM 1 [01-07-2025(online)].pdf	2025-07-01
9	202517062678-DRAWINGS [01-07-2025(online)].pdf	2025-07-01
10	202517062678-DECLARATION OF INVENTORSHIP (FORM 5) [01-07-2025(online)].pdf	2025-07-01
11	202517062678-COMPLETE SPECIFICATION [01-07-2025(online)].pdf	2025-07-01
12	202517062678-MARKED COPIES OF AMENDEMENTS [14-07-2025(online)].pdf	2025-07-14
13	202517062678-FORM 13 [14-07-2025(online)].pdf	2025-07-14
14	202517062678-AMMENDED DOCUMENTS [14-07-2025(online)].pdf	2025-07-14
15	202517062678-FORM 3 [27-10-2025(online)].pdf	2025-10-27