100 



80 



60 

 40 



10 



>-i 4 

 ft 



O MPY 



# Max. Pit Depth, Mils. 



A Crevice Corrosion, Depth, 

 Mils 



Wi 



Days 197 123 402 403 751 



Depth, Ft. 2,500 6,000 2,500 6,000 6,000 



Figure 32. Corrosion rates, maximum pit depths and crevice corrosion of 

 AISI Type 634-CRT precipitation hardening stainless steel in 

 seawater at the surface and at depth. 



91 



