An alloy product having improved fatigue failure resistance, comprising
about, by weight, 7.6 to about 8.4% zinc, about 2.0 to about 2.6% copper,
about 1.8 to about 2.3% magnesium, about 0.088 to about 0.25.% Zr, about
0.01 to about 0.09.% Fe, and about 0.01 to about 0.06 w % Si the balance
substantially aluminum and incidental elements and impurities The alloy
product, suitable for aerospace applications, exhibits improved fatigue
failure resistance than its 7055 counterpart of similar size, shape,
thickness and temper.