Patent ID: 11879167
Assignee: NOVELIS KOBLENZ GMBH
Field: Materials, metallurgy (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 8:
9. The rolled composite aerospace product according to claim 1, wherein the 2XXX-series alloy of the 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%,
balance being aluminium and impurities.