POSCO Holdings Inc.
PLATING STEEL SHEET FOR HOT PRESS FORMING, FORMING MEMBER USING SAME, AND MANUFACTURING METHOD THEREFOR

Abstract:

A plating steel sheet for hot press forming includes: a base steel sheet; an Al-Zn-based plating layer formed on at least one surface of the base steel sheet; and an Fe-Al-based surface alloy layer formed between the base steel sheet and the Al-Zn-based plating layer, wherein the Al-Zn-based plating layer can include 10-30 wt % of Zn, 1 wt % or less of Fe, and the balance of Al and impurities.