US 12,448,667 B2
Aluminium alloy sheet for closures and thermomechanical method for producing the same
Ignacio Gil Fernández-Marcote, Alicante (ES); and Catalina Fernández Rivera, Alicante (ES)
Assigned to ALUDIUM TRANSFORMACIÓN DE PRODUCTOS, S.L.U., (ES)
Appl. No. 18/282,510
Filed by ALUDIUM TRANSFORMACIÓN DE PRODUCTOS, S.L.U., Amorebieta-Etzano (ES)
PCT Filed Mar. 15, 2022, PCT No. PCT/EP2022/056716
§ 371(c)(1), (2) Date Sep. 15, 2023,
PCT Pub. No. WO2022/194875, PCT Pub. Date Sep. 22, 2022.
Claims priority of application No. 21382222 (EP), filed on Mar. 18, 2021.
Prior Publication US 2024/0158893 A1, May 16, 2024
Int. Cl. C22C 21/00 (2006.01); C22F 1/04 (2006.01)
CPC C22C 21/00 (2013.01) [C22F 1/04 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An aluminium alloy sheet comprising:
an aluminium alloy, the aluminium alloy comprising:
0.15 wt. % to 0.25 wt. % of Si,
0.80 wt. % to 1.00 wt. % of Fe,
0.08 wt. % to 0.12 wt. % of Cu,
0.55 wt. % to 0.70 wt. % of Mn,
0.30 wt. % to 0.40 wt. % of Mg,
equal to or less than 0.05 wt. % of each other element, and
aluminium as balance,
wherein the aluminium alloy sheet has an earing less than 3%, and
wherein the aluminium alloy sheet has a tensile strength of 175 MPa to 215 MPa, a yield strength of 170 MPa to 210 MPa, and elongation equal to or higher than 2%.