Patent ID: 7704332

Claim:
A single crystal alloy having a composition consisting of from 8.0 to 10 wt % chromium, up to 5.0 wt % tungsten, from 1.5 to 2.5 wt % molybdenum, from 4.0 to 5.0 wt % tantalum, from 5.65 to 6.25 wt % aluminum, from 11.5 to 13.5 wt % cobalt, up to 0.2 wt % hafnium, from 5.0 to 6.0 wt % rhenium, from 1.5 to 2.5 wt % ruthenium, and the balance nickel and having a density less than 0.310 lb/in 3 and a specific creep strength in the range of 106×10 3 to 110×10 3 inches.