Table 50. Continued. 



Alloy 



Stress 

 (ksi) 



Percent 



Yield 



Strength 



Exposure 

 (day) 



Depth 

 (ft) 



Number of 



Specimens 



Exposed 



Number 

 Failed 



Source 



15-7 AMV, RH950 



77 



35 



751 



5,640 



3 







CEL (4) 



15-7 AMV, RH950 



110 



50 



751 



5,640 



3 



3 



CEL (4) 



15-7 AMV, RH950 



165 



75 



751 



5,640 



3 



3 



CEL (4) 



15-7 AMV, RH950 



77 



35 



197 



2,340 



3 







CEL (4) 



15-7 AMV, RH950 



110 



50 



197 



2,340 



3 



2> 



CEL (4) 



15-7 AMV, RH950 



165 



75 



197 



2,340 



3 



2 



CEL (4) 



15-7 AMV, RH950 



110 



50 



402 



2,370 



3 







CEL (4) 



15-7 AMV, RH950 



165 



75 



402 



2,370 



3 



3 



CEL (4) 



AL362, H950 

 AL362, H950 



- 



75 



189 



5,900 



3 







CEL (4) 



- 



75 



189 



5,900 



6 







CEL (4) 



AL362, H1050 

 AL362, H1050 /:> 



- 



75 



189 



5,900 



5 







CEL (4) 



- 



75 



189 



5,900 



6 







CEL (4) 



AL362, H1050' 



- 



75 



189 



5,900 



1 







CEL (4) 



AL362, H1050'" 



- 



75 



189 



5,900 



1 







CEL (4) 



18Cr-14Mn-0.5N 



41 



50 



402 



2,370 



3 







CEL (4) 



18Cr-14Mn-0.5N 



61 



75 



402 



2,370 



3 







CEL (4) 



Numbers in parentheses indicate days to failure. 



Numbers refer to references at end of report. 



Transverse butt weld at midlength of specimens. 



Failed by crevice corrosion at anvils of stress jig. 



Broke at edge of weld bead. 

 f 

 ' Broke at junction of heat-affected zone and sheet metal. 



*Crevice corrosion at bolt hole, released tension. 



Painted, zinc-rich primer, 8 mils. 



Specimens were missing when structure was retrieved. 



•'Incipient crack in one specimen. 

 k 

 One specimen broke prior to exposure in the seawater. 



Painted, wash primer (MIL-C-8514) + red lead epoxy primer + epoxy topcoat, 7 mils. 



Painted, wash primer (MIL-C-8514) + epoxy primer + epoxy topcoat, 7 mils. 



176 



