100 

 80 

 60 



40 



20 



10 



A 



O 



O MPY 



# Max. Pit Depth, Mils. 



A Crevice Corrosion, Depth, Mils. 



P Perforated 



Io»aI Io*a1 \cm*&\ 



m 



sijl 



♦al 1q>a1 



LftAi 



Days 182 

 Depth, Ft. 5 



197 

 2,500 



123 

 6,000 



366 

 5 



402 

 2,500 



403 751 

 6,000 6,000 



1064 

 6,000 



Figure 15. Corrosion rates, maximum pit depths and crevice corrosion of AISI 

 Type 311 stainless steel in seawater at the surface and at depth. 



74 



