ALUMINUM ALLOY SHEET MATERIAL FOR HIGH MOLDING EXCELLENT IN THERMAL CONDUCTIVITY AND PRODUCTION METHOD THEREOF

摘要

PROBLEM TO BE SOLVED: To provide an aluminum alloy sheet material which regulates the content of Zr in addition to regulating the contents of Si, Fe and Ti, has excellent thermal conductivity by refining the average crystal grain size and has excellent high molding.SOLUTION: An aluminum alloy sheet material for high molding comprises, by mass%, Si:0.15% or less, Fe:1.00 to 1.60%, Ti:0.005 to 0.02%, Zr:0.0005 to 0.03%, and optionally Mn:0.01 to 0.50%, with the balance being Al and inevitable impurities, and has the average crystal grain size of 25 μm or less.