Hot Stamp Formed Article

Abstract: Provided is a hot-stamp-formed article which has a chemical composition formed from, by mass%, 0.40 to 0.70% C, 0.100% or less P, 0.0100% or less S, 0.0200% or less N, 0.0200% or less O, 0.0010 to 0.500% Al, 0.0010 to 0.100% Nb, 0.010 to 0.200% Ti, 0.010 to 2.00% Mo, 0.0005 to 0.0200% B, and Fe and impurities as the balance. The hot-stamp-formed article has a microstructure in which the total segregation of least one of Mo, W, Ta, Re, Os, Ir, and Tc at the prior austenite grain boundary is 0.10 atom% or greater.

Patent Information

Application #

Filing Date

14 June 2024

Publication Number

51/2024

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. ITO, Kazuma

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

2. TABATA, Shinichiro

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

3. TODA, Yuri

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

Specification

Documents

Application Documents

#	Name	Date
1	202417046054-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [14-06-2024(online)].pdf	2024-06-14
2	202417046054-STATEMENT OF UNDERTAKING (FORM 3) [14-06-2024(online)].pdf	2024-06-14
3	202417046054-REQUEST FOR EXAMINATION (FORM-18) [14-06-2024(online)].pdf	2024-06-14
4	202417046054-PROOF OF RIGHT [14-06-2024(online)].pdf	2024-06-14
5	202417046054-PRIORITY DOCUMENTS [14-06-2024(online)].pdf	2024-06-14
6	202417046054-POWER OF AUTHORITY [14-06-2024(online)].pdf	2024-06-14
7	202417046054-FORM 18 [14-06-2024(online)].pdf	2024-06-14
8	202417046054-FORM 1 [14-06-2024(online)].pdf	2024-06-14
9	202417046054-DECLARATION OF INVENTORSHIP (FORM 5) [14-06-2024(online)].pdf	2024-06-14
10	202417046054-COMPLETE SPECIFICATION [14-06-2024(online)].pdf	2024-06-14
11	202417046054-FORM 3 [08-10-2024(online)].pdf	2024-10-08