Patent ID: 11958266
Assignee: NOVELIS KOBLENZ GMBH
Field: Materials, metallurgy (Chemistry)
Classification: CPC B  C | IPC B  C

Claim 11:
12. The rolled composite aerospace product according to claim 1, wherein the 2XXX-series core layer has a composition of, in wt. %,, Cu
1.9% to 7.0%;

Mg
0.30% to 1.8%;

Mn
up to 1.2%;

Si
up to 0.40%;

Fe
up to 0.40%;

Cr
up to 0.35%;

Zn
up to 1.0%;

Ti
up to 0.15%;

Zr
up to 0.25;

V
up to 0.25%;

Li
up to 2.0%;

Ag
up to 0.80%;

Ni
up to 2.5%;, and
balance being aluminium and impurities.