Patent ID: 8366838

Claim:
A single crystal alloy having a composition consisting of from 4.0 to 10 wt % chromium, from 1.0 to 2.5 wt % molybdenum, from 3.0 to 8.0 wt % tantalum, from 5.5 to 6.25 wt % aluminum, from 6.0 to 17 wt % cobalt, up to 0.2 wt % hafnium, from 4.0 to 6.0 wt % rhenium, from 1.0 to 3.0 wt % ruthenium, and the balance nickel, a density in the range of from 0.300 to 0.325 lb/in 3 , and a specific creep strength in the range of from 106×10 3 to 124×10 3 inches.