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Hot Stamped Component And Method Of Production Of Same

Abstract: Provided is a hot-stamping shaped article comprising, on the surface of a steel material, a Zn-based plating layer of which an upper layer is a two-phase structure of a G phase and an Fe-Zn solid solution and of which a lower layer excludes the upper layer and is a single-phase structure of the Fe-Zn solid solution, and a Zn oxide layer on the surface of the Zn-based plating layer, wherein the root-mean-square slope R?q of a roughness curve on the surface of the hot-stamping shaped article is at most 0.25, and the area ratio of the Zn oxide layer on the surface of the hot-stamping shaped article is at most 30%. Also provided is a manufacturing method for the same.

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Patent Information

Application #
Filing Date
21 August 2025
Publication Number
37/2025
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. MORI, Yukino
c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071
2. SENGOKU, Akihiro
c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071
3. MORI, Marina
c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071

Specification

Documents

Application Documents

# Name Date
1 202517079365-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [21-08-2025(online)].pdf 2025-08-21
2 202517079365-STATEMENT OF UNDERTAKING (FORM 3) [21-08-2025(online)].pdf 2025-08-21
3 202517079365-REQUEST FOR EXAMINATION (FORM-18) [21-08-2025(online)].pdf 2025-08-21
4 202517079365-PROOF OF RIGHT [21-08-2025(online)].pdf 2025-08-21
5 202517079365-PRIORITY DOCUMENTS [21-08-2025(online)].pdf 2025-08-21
6 202517079365-POWER OF AUTHORITY [21-08-2025(online)].pdf 2025-08-21
7 202517079365-FORM 18 [21-08-2025(online)].pdf 2025-08-21
8 202517079365-FORM 1 [21-08-2025(online)].pdf 2025-08-21
9 202517079365-DRAWINGS [21-08-2025(online)].pdf 2025-08-21
10 202517079365-DECLARATION OF INVENTORSHIP (FORM 5) [21-08-2025(online)].pdf 2025-08-21
11 202517079365-COMPLETE SPECIFICATION [21-08-2025(online)].pdf 2025-08-21