- STEEL SHEET PLATED WITH FE-AL ALLOY HAVING IMPROVED RESISTANCE AGAINST HYDROGEN DELAYED FRACTURE MANUFACTURING METHOD THEREOF AND HOT PRESS FORMED PART MANUFACTURED THEREFROM

摘要

The present invention relates to an iron-aluminum alloy plated steel sheet having excellent hydrogen delayed fracture characteristics, a method for manufacturing the same, and a hot press formed member manufactured therefrom. Steel sheet for hot press molding according to an aspect of the present invention is a steel sheet; It is formed on the surface of the steel sheet, and includes an iron-aluminum alloy plating layer containing 60% by weight or more of Fe, the plating layer may include 90% or more of the iron-aluminum alloy phase having a BCC structure based on the area.