Patent ID: 6238497
Filing Date: 2001-05-29
Classification: B22D,B23K,C22C,C22F

Abstract:
A method of producing an aluminum alloy fin stock material, comprising the steps of continuously strip casting an aluminum finstock alloy to form an as-cast strip, rolling the as-cast strip to form a sheet article of intermediate gauge, annealing the sheet article of intermediate gauge, and cold rolling the annealed sheet article of intermediate gauge to produce an aluminum finstock material of final gauge, wherein the steps are carried out on the finstock alloy comprises the following elements in weight percent:Fe 1.6 to 2.4 Si 0.7 to 1.1 Mn 0.3 to 0.6 Zn 0.3 to 2.0 Ti (optional) 0.005 to 0.040 Incidental elements less than 0.05 each, total no more than 0.15 Al balance.