HIGH STRENGTH STEEL SHEET WITH EXCELLENT HOLE EXPANDABILITY AND METHOD OF PRODUCING THE SAME - Patent 4798751

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EP 4 798 751 A1

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(43)	Date of publication:
	02.09.2026 Bulletin 2026/36

(21)	Application number: 24786860.7

(22)	Date of filing: 14.10.2024

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International Patent Classification (IPC):

C22C 38/04^(2006.01)

(52)	Cooperative Patent Classification (CPC):
	C22C 38/04; C22C 38/02; C22C 38/06; C22C 38/38; C22C 38/16; C22C 38/08; C22C 38/12; C22C 38/14; C22C 38/002; C22C 38/001; C21D 9/46; C21D 8/0226; C21D 8/0236; C21D 8/0247; C21D 8/0252; C21D 8/0273; C21D 6/005; C21D 6/008; C21D 1/18; C21D 1/19; C21D 1/26; B32B 15/013; B32B 15/012; C23C 2/06; C23C 2/40; C22C 18/00; C22C 18/04; C22C 21/02; C22C 21/10; C23C 2/0224; C21D 8/02

(86)	International application number:
	PCT/EP2024/078883

(87)	International publication number:
	WO 2025/087716 (01.05.2025 Gazette 2025/18)

(84)	Designated Contracting States:
	AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR
	Designated Extension States:
	BA
	Designated Validation States:
	GE KH MA MD TN

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Priority:

26.10.2023 EP 23206080

(71)	Applicant: Tata Steel Nederland Technology B.V.
	1951 JZ Velsen-Noord (NL)

(72)	Inventors:
	MOSTERT, Richard 1970 CA IJmuiden (NL) CHEN, Shangping 1970 CA IJmuiden (NL)

(74)	Representative: Group Intellectual Property Services
	c/o Tata Steel Nederland Technology B.V. P.O. Box 10000 - 3G.37 1970 CA IJmuiden 1970 CA IJmuiden (NL)

(54)	HIGH STRENGTH STEEL SHEET WITH EXCELLENT HOLE EXPANDABILITY AND METHOD OF PRODUCING THE SAME