US 12,247,277 B2
Method for producing a corrosion and high temperature resistant aluminum alloy extrusion material
Arvid Espedal, Mårslet (DK); Xiao-Jun Jiang, Haugesund (NO); and Minxia Li, Suzhou (CN)
Assigned to HYDRO EXTRUDED SOLUTIONS AS, Oslo (NO)
Filed by HYDRO EXTRUDED SOLUTIONS AS, Oslo (NO)
Filed on Jan. 16, 2024, as Appl. No. 18/413,476.
Application 18/413,476 is a division of application No. 17/799,892, granted, now 11,939,654, previously published as PCT/EP2021/053784, filed on Feb. 16, 2021.
Claims priority of application No. 2050177-1 (SE), filed on Feb. 17, 2020; and application No. 2050198-7 (SE), filed on Feb. 21, 2020.
Prior Publication US 2024/0150883 A1, May 9, 2024
Int. Cl. C22F 1/04 (2006.01); B32B 15/01 (2006.01); C22C 21/00 (2006.01)
CPC C22F 1/04 (2013.01) [B32B 15/017 (2013.01); C22C 21/00 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A corrosion resistant aluminum alloy tube, the tube having a composition consisting of:
0.05-0.15% by weight of silicon;
less than or equal to 0.40% by weight of iron;
0.01-0.6% by weight of manganese;
less than or equal to 0.30% by weight of magnesium;
less than or equal to 0.70% by weight of zinc;
0.05-0.35% by weight of chromium;
0.02-0.20% by weight of zirconium;
less than or equal to 0.25% by weight of titanium;
less than or equal to 0.20% by weight vanadium;
less than or equal to 0.10% by weight of copper;
up to 0.15% by weight of other impurities, each not greater than 0.03% by weight, and
a balance of aluminum, and
wherein the tube has a coating of zinc on an outer surface thereof.