Patent ID: 9545777
Date: 2017-01-17
CPC Classifications: B32B,Y10T

Claim:
1. A multi-layer metal sheet, comprising: a core layer of aluminum-containing alloy comprising up to 0.25 wt. % of Si, up to 0.25 wt. % of Fe, from 0.5 to 0.6 wt. % of Cu, from 1.4 to 1.6 wt. % of Mn, from 0.06 to 0.14 wt. % of Mg, up to 0.05 wt. % of Cr, up to 0.04 wt. % of Zn, from 0.1 to 0.2 wt. % of Ti, up to 0.05 wt. % of Sr, up to 0.15 wt. % impurities, and the balance aluminum, wherein the core layer has a first side and a second side; a first cladding layer on the first side of the core layer, wherein the first cladding layer comprises from 2.5 wt % to 4.0 wt % of zinc and from 6 wt. % to 13 wt. % of Si; and a second cladding layer on the second side of the core laver, wherein the second cladding layer comprises from 2.5 wt % to 4.0 wt % of zinc and from 6 wt. % to 13 wt. % of Si.