A cylindrical component 50 mm long constructed from an S-590 alloy (Figure 8.32) is to be exposed to a tensile load of 70,000 N. What minimum diameter is required for it to experience an elongation of no more than 8.2 mm after an exposure for 1,500 h at 650(C? Assume that the sum of instantaneous and primary creep elongations is 0.6 mm.