Document Type and Number:
Japanese Patent JPWO2022070621
Kind Code:
A1
Abstract:
Provided is a hot rolled steel sheet having a tensile strength of 780 MPa or more, a sheet thickness of 1.2 to 4.0 mm, and a sheet width of 750 mm or more, and satisfying - 15≤(λW 1 +λW 2 )/2-λC≤15 (where λW 1 and λW 2 respectively indicate hole expansion ratios (%) at 1/8 positions of the sheet width from one end of the hot rolled steel sheet in a sheet width direction perpendicular to a rolling direction and the other end at an opposite side, and λC indicates a hole expansion ratio (%) of a sheet width center part).
Application Number:
JP2022553519A
Publication Date:
April 07, 2022
Filing Date:
August 10, 2021
Export Citation:
