100 



80 



60 

 40 



20 



10 



S 2 



.6 



.4 



.2 - 



MPY 



Max. Pit Depth, Mils. 



A Crevice Corrosion, Depth, Mils. 



O 



o 







G 





"o""T 



wmm 



l » A 



Days 182 

 Depth, Ft. 5 



197 123 



2,500 6,000 



366 



5 



402 403 

 2,500 6,000 



751 1064 

 6,000 6,000 



Figure 21. Corrosion rates, maximum pit depths and crevice corrosion of AISI 

 Type 325 stainless steel in seawater at the surface and at depth. 



80 



