	US 12,138,886 B2
	Plated steel sheet for hot stamping
Takehiro Takahashi, Tokyo (JP); Daisuke Maeda, Tokyo (JP); and Hiroshi Takebayashi, Tokyo (JP)
Assigned to NIPPON STEEL CORPORATION, Tokyo (JP)
Appl. No. 17/612,446
Filed by NIPPON STEEL CORPORATION, Tokyo (JP)
PCT Filed May 29, 2020, PCT No. PCT/JP2020/021445 § 371(c)(1), (2) Date Nov. 18, 2021, PCT Pub. No. WO2020/241866, PCT Pub. Date Dec. 3, 2020.
Claims priority of application No. 2019-102273 (JP), filed on May 31, 2019.
Prior Publication US 2022/0219430 A1, Jul. 14, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B32B 15/01 (2006.01); C22C 18/00 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C25D 3/56 (2006.01)

CPC B32B 15/013 (2013.01) [C22C 18/00 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C25D 3/565 (2013.01)]

5 Claims

1. A plated steel sheet for hot stamping comprising a steel sheet and a Zn—Ni plating layer formed on at least one surface of the steel sheet, wherein the Zn—Ni plating layer has an Ni concentration of 8 mass % or more, a Zn concentration of 50 mass % or more, a plating deposition amount of 30 g/m²or more and 90 g/m²or less per surface, and an average grain size of the Zn—Ni plating of 50 nm or less.