Back to results
US 2022/0274377 A1Published application
Plating steel sheet for hot press forming, forming member using same, and manufacturing method therefor
AssigneePosco
InventorsHyeon-Seok HWANG, Il-Jeong PARK, Myung-Soo KIM
Life of this patent
Estimating the term…
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.
Claims15
A plated steel sheet for hot press forming comprising:
- a base steel sheet;
- an Al—Zn-based plating layer on at least one surface of the base steel sheet;
- and
- an Fe—Al-based plating layer between the base steel sheet and the Al—Zn-based plating layer,
- wherein the Fe—Al-based plating layer prevents the base steel sheet from directly contacting with a Zinc (Zn) component of the Al—Zn-based plating layer, and
- wherein the Fe—Al-based plating layer comprises, by wt %, 30 to 60% of aluminum (Al), 30 to 60% of iron (Fe), and 20% or less of silicon (Si), and other impurities.
3 more elements
Dependencies are inferred from the claim text.