Patent ID: 6315842
Filing Date: 2001-11-13
Classification: C22C

Abstract:
A mold for plastics comprising a rolled, extruded or forged AlZnMgCu aluminum alloy product >60 mm thick, and having a composition which comprises, in weight %:5.7 < Zn < 8.7 1.7 < Mg < 2.5 1.2 < Cu < 2.2 Fe < 0.14 Si < 0.11 0.05 < Zr < 0.15 Mn < 0.02 Cr < 0.02with Cu+Mg<4.1 and Mg>Cu,other elements <0.05 each and <0.10 in total,the product having been treated by solution heat treating, quenching and aging to a T6 temper.