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US 2024/0051005 A1Published application
Plated steel sheet for hot press forming, and method of manufacturing the same
AssigneePosco
InventorsHyeon-seok Hwang, Kkochnim Oh
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Abstract
A plated steel sheet for hot press forming with improved hydrogen delayed fracture properties is disclosed. The disclosed plated steel sheet includes a base steel sheet, and a plating layer formed on a surface of the base steel sheet and including, by weight, Si: 5.0 to 15.0%, Zn: 10.0 to 30.0%, Fe: 4.0 to 12.0%, and the remainder including Al and unavoidable impurities.
Claims10
A plated steel sheet for hot press forming, comprising:
- a base steel sheet;
- and
- a plating layer formed on a surface of the base steel sheet and including, by weight, Si:
- 5.0 to 15.0%, Zn:
- 10.0 to 30.0%, Fe:
- 4.0 to 12.0%, and the remainder including Al and unavoidable impurities.
3 more elements
A method of manufacturing a plated steel sheet for hot press forming, comprising:
- providing a base steel sheet and preparing a plated steel sheet by immersing the base steel sheet in a plating solution including, by weight, Si:
- 5.0 to 15.0%, Zn:
- 10.0 to 30.0%, and the remainder including Al and unavoidable impurities;
- heating the plated steel sheet to a temperature greater than 800° C. and less than 1,100° C.;
- hot press forming the plated steel sheet;
- and
- cooling the hot press-formed plated steel sheet.
4 more elements
Dependencies are inferred from the claim text.