10,X 



Ni, IMi-Cr and Ductile Cast Irons 

 O Average values 

 /S. Maximum and minimum values 



Austenitic Cast Irons 



Average values 



£j Maximum and minimum values 



Austenitic Cast Irons 



2,000 



4,000 



3,000 



Depth (ft) 



Figure 1 1. Effect of depth in sea water on corrosion rates of cast irons. 



