100 



80 

 60 



40 



20 



10 



§ 2 









_ O MPY 



• Max. Pit Depth, Mils. 



A Crevice Corrosion, Depth, Mils. 



P Perforated i 



1 1 



] — ,.■.■&.-.. 





I 









M 





n 





u 





mm ■ — t 



Ql 



: : : 1 





JHiL 



Q • 



Days 



182 



197 



123 



366 



402 



403 



751 



1064 



Depth, Ft. 



5 



2,500 



6,000 



5 



2,500 



6,000 



6,000 



6,000 



Figure 17. Corrosion rates, maximum pit depths and crevice corrosion of AISI 

 Type 316 (sensitized) stainless steel in seawater at the surface 

 and at depth. 



76 



