(19)
(11) EP 4 402 297 A1

(12)

(43) Date of publication:
24.07.2024 Bulletin 2024/30

(21) Application number: 22789871.5

(22) Date of filing: 14.09.2022
(51) International Patent Classification (IPC): 
C22C 21/08(2006.01)
C22F 1/00(2006.01)
B21C 23/00(2006.01)
C22F 1/047(2006.01)
(52) Cooperative Patent Classification (CPC):
C22C 21/08; C22F 1/047; C22F 1/002; B21C 23/002
(86) International application number:
PCT/EP2022/075482
(87) International publication number:
WO 2023/041557 (23.03.2023 Gazette 2023/12)
(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 MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 14.09.2021 NO 20211106

(71) Applicant: Norsk Hydro ASA
0240 Oslo (NO)

(72) Inventors:
  • TUNDAL, Ulf Håkon
    6600 Sunndalsøra (NO)
  • REISO, Oddvin
    6600 Sunndalsøra (NO)

(74) Representative: Hydro IPD 
Norsk Hydro ASA Intellectual Property P.O. Box 980 Skøyen
0240 Oslo
0240 Oslo (NO)

   


(54) HEAT TREATABLE ALUMINIUM ALLOY WITH IMPROVED MECHANICAL PROPERTIES AND METHOD FOR PRODUCING IT