US 8,491,733 B2
Aluminum alloy of the AlZnMg type and method of producing it
Günther Trenda, Dorfgastein (Austria)
Assigned to Aluminium Lend Gesellschaft m.b.H., Lend (Austria)
Appl. No. 12/440,005
Filed by Günther Trenda, Dorfgastein (Austria)
PCT Filed Sep. 3, 2007, PCT No. PCT/AT2007/000418
§ 371(c)(1), (2), (4) Date Dec. 16, 2009,
PCT Pub. No. WO2008/028208, PCT Pub. Date Mar. 13, 2008.
Claims priority of application No. A 1472/2006 (AT), filed on Sep. 4, 2006.
Prior Publication US 2010/0089506 A1, Apr. 15, 2010
Int. Cl. C22C 21/10 (2006.01); C22F 1/053 (2006.01)
U.S. Cl. 148—417  [148/701; 420/532; 420/541] 11 Claims
 
1. An aluminum alloy, comprising:
5.0-5.8% by weight of zinc;
1.1-1.2% by weight of magnesium;
0.2-0.3% by weight of chromium;
0.1-0.3% by weight of manganese;
0.1-0.4% by weight of copper;
0.05-0.15% by weight of titanium;
0.005-0.05% by weight of cerium;
0.005-0.05% by weight of samarium;
a maximum of 0.2% by weight of silicon;
a maximum of 0.3% by weight of iron;
a maximum of 0.005% by weight of zirconium;
and as the remainder, aluminum.