200 



100 

 80 

 60 



40 

 20 h 



10 



8 



ft 

 S 6 



1 



— o 



♦ A 



O MPY - 



• Max. Pit Depth, Mils 



A Crevice Corrosion, Depth, Mils 



! P Perforated 



o 



• A 



ln*Al 



o 



o — 



_A_ 



o 



_A_ 



& 



o 



£LA 



Days 

 Depth, Ft. 



182 

 5 



197 

 2,500 



123 

 6,000 



366 



402 403 

 2,500 6,000 



751 

 6,000 



1064 

 6,000 



Figure 44. Corrosion rates, maximum pit depths and crevice corrosion of 

 18Cr-14Mn-0.5N stainless steel in seawater at the surface and 

 at depth. 



102 



