Hot Rolled Steel Sheet

Abstract: This hot-rolled steel sheet has a specific chemical composition and a metal structure that comprises less than 3.00% by area of residual austenite; and this hot-rolled steel sheet has a tensile strength of 980 MPa or more and an Rcf value of 2.00 or more, the Rcf value indicating the average fracture facet size ratio before and after plastic deformation.

Patent Information

Application #

Filing Date

16 October 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. KOBAYASHI Shunsuke

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	202317070123-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [16-10-2023(online)].pdf	2023-10-16
2	202317070123-STATEMENT OF UNDERTAKING (FORM 3) [16-10-2023(online)].pdf	2023-10-16
3	202317070123-PROOF OF RIGHT [16-10-2023(online)].pdf	2023-10-16
4	202317070123-PRIORITY DOCUMENTS [16-10-2023(online)].pdf	2023-10-16
5	202317070123-POWER OF AUTHORITY [16-10-2023(online)].pdf	2023-10-16
6	202317070123-FORM 1 [16-10-2023(online)].pdf	2023-10-16
7	202317070123-DECLARATION OF INVENTORSHIP (FORM 5) [16-10-2023(online)].pdf	2023-10-16
8	202317070123-COMPLETE SPECIFICATION [16-10-2023(online)].pdf	2023-10-16
9	202317070123-FORM 3 [06-03-2024(online)].pdf	2024-03-06
10	202317070123-FORM 18 [05-06-2025(online)].pdf	2025-06-05