Hot Rolled Steel Sheet

Abstract: This hot-rolled steel sheet has a prescribed chemical composition and metallographic structure, Pi/Ps is 1.2-2.0 in a region in which a sheet-thickness cross section parallel to the rolling direction is divided into three portions in the sheet thickness direction, where Pi is the pole density of the (001) face in ferrite and bainite in the central region, and Ps is the pole density of the (001) face in ferrite and bainite in the surface layer regions, and the tensile strength of the hot-rolled steel sheet is 950 MPa or greater.

Patent Information

Application #

Filing Date

27 September 2023

Publication Number

36/2024

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. TOYODA Takeshi

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

2. SHUTO Hiroshi

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

Specification

Documents

Application Documents

#	Name	Date
1	202317064871-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [27-09-2023(online)].pdf	2023-09-27
2	202317064871-STATEMENT OF UNDERTAKING (FORM 3) [27-09-2023(online)].pdf	2023-09-27
3	202317064871-PROOF OF RIGHT [27-09-2023(online)].pdf	2023-09-27
4	202317064871-PRIORITY DOCUMENTS [27-09-2023(online)].pdf	2023-09-27
5	202317064871-POWER OF AUTHORITY [27-09-2023(online)].pdf	2023-09-27
6	202317064871-NOTIFICATION OF INT. APPLN. NO. & FILING DATE (PCT-RO-105-PCT Pamphlet) [27-09-2023(online)].pdf	2023-09-27
7	202317064871-FORM 1 [27-09-2023(online)].pdf	2023-09-27
8	202317064871-DECLARATION OF INVENTORSHIP (FORM 5) [27-09-2023(online)].pdf	2023-09-27
9	202317064871-COMPLETE SPECIFICATION [27-09-2023(online)].pdf	2023-09-27
10	202317064871-FORM 3 [20-02-2024(online)].pdf	2024-02-20
11	202317064871-FORM 18 [27-06-2025(online)].pdf	2025-06-27