High Strength Hot Rolled Steel Sheet

Abstract: Provided is a high strength hot rolled steel sheet having a predetermined chemical composition wherein at all of the positions of 1/10W 3/10W 5/10W 7/10W and 9/10W from the end in the width direction (W is the total width in the direction perpendicular to the rolling direction and the sheet thickness direction) the metal structure at 1/4 position of the sheet thickness contains in area% at least 95% of tempered martensite 5% or less of fresh martensite and 5% of less in total of at least one among ferrite upper bainite and pearlite and the difference between the maximum and minimum tensile strengths at all of the positions in the width direction is 30 MPa or less.

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