







LEGEND 











Phosphorous Bronze A 







Phosphorous Bronze D 













water sediment 





water sediment 





6,000 ft 









6,000 ft 











NCEL 



O 



• 



NCEL 



o 



• 







INCO^ 



A 



▲ 



2,500 ft 











NCEL^^ 



® 





NCEL 



o 



♦ 





2,500 ft 



5,600 ft. 

 Surface, 



NCEL 



INCO^ 

 Atlantic, NRL'^ 

 Pacific 



PCZ, NRL^^ 



PHH^S 



NCEL 



INCO^ 



D 

 V 



, + 



X 



V////A 



■ 

 T 



Surface, Pacific, NCEL 



INN\\N\I 





1 1 





200 



400 



600 800 



Exposure (days) 



1000 



1200 



1400 



Figure 24. Corrosion rates of phosphorous bronzes A and D. 



