8 hrs ac d beta transus 50f 10 min ac 1200f 8 hrs ac the data in table 5 can be analyzed by linear regression analysis to generate an equation of the form ra c uts b where c and b are constants and uts equals ultimate tensile strength by formulating an equation of this character for each alloy it is possible to determine the expected 34 calculated 34 ductility at any uts level table 6______________________________________ calculated ra sup 1 at 200 ksi uts mo eq sup 2______________________________________ti 4fe 4mo 1al 150 sub 2 21 1 14 6ti 4fe 4mo 2al 150 sub 2 32 3 13 6ti 4fe 6mo 1al 150 sub 2 32 4 16 6ti 4fe 6mo 2al 150 sub 2 26 2 15 6ti 5fe 7mo 1al 150 sub 2 24 6 20 5ti 5fe 7mo 2al 150 sub 2 26 5 19 5______________________________________ sup 1 calculated from table 5 data using least squares linear curve fit for each alloy of the form ra c uts b c b constants sup 2 see table 3 table 6 provides such a calculated ductility at a 200 ksi tensile strength level for each alloy fig2 is a plot of the data presented in table 6 it may be seen from the fig2 curve that as in the case of the ductility curves in fig1.