200 



100 

 80 

 GO 



40 

 20 



10 

 8 

 6 



1 



A 



O 

 • 

 A 

 P 



MPY 



Max. Pit Depth, Mils. 



Crevice Corrosion, Depth, Mils. 



Perforated 





\&m&\ fEm&\ Iq*a1 1q«a1 



Days 181 

 Depth, Ft. 5 



197 

 2,500 



123 

 6,000 



366 

 5 



402 

 2,500 



403 751 



6,000 6,000 



1064 

 6,000 



Figure 18. Corrosion rates, maximum pit depths and crevice corrosion of AISI 

 Type 316L stainless steel in seawater at the surface and at depth. 



77 



