(19)
(11) EP 4 551 727 A1

(12)

(43) Date of publication:
14.05.2025 Bulletin 2025/20

(21) Application number: 23739263.4

(22) Date of filing: 07.07.2023
(51) International Patent Classification (IPC): 
C21D 1/18(2006.01)
C22C 38/02(2006.01)
C22C 38/22(2006.01)
 C21D 8/10(2006.01)
C22C 38/04(2006.01)
C22C 38/44(2006.01)
(52) Cooperative Patent Classification (CPC):
C22C 38/02; C22C 38/04; C22C 38/06; C22C 38/22; C22C 38/44; C22C 38/28; C22C 38/50; C22C 38/20; C22C 38/42; C22C 38/32; C22C 38/54; C21D 1/18; C21D 8/105; C21D 2211/002; C21D 2211/005; C21D 2211/008; C21D 2211/009; C22C 38/24; C22C 38/46
(86) International application number:
PCT/EP2023/068844
(87) International publication number:
WO 2024/008920 (11.01.2024 Gazette 2024/02)
(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:
KH MA MD TN

(30) Priority: 08.07.2022 NL 2032426

(71) Applicant: Tenaris Connections B.V.
1019 GM Amsterdam (NL)

(72) Inventors:
  • BELLINGARDI, Maurizio
    24044 Dalmine (BG) (IT)
  • BLANCAS GARCIA, Victor
    Valenzuela Tejeria Veracruz, CP 91697 (MX)
  • HERNANDEZ RIVERA, Angel
    Valenzuela Tejeria Veracruz, CP 91697 (MX)
  • ORTOLANI, Matteo
    24044 Dalmine (BG) (IT)

(74) Representative: EP&C 
P.O. Box 3241
2280 GE Rijswijk
2280 GE Rijswijk (NL)

   


(54) STEEL COMPOSITION FOR EXPANDABLE TUBULAR ARTICLES, EXPANDABLE TUBULAR ARTICLE HAVING THIS STEEL COMPOSITION, MANUFACTURING METHOD THEREOF AND USE THEREOF