Titanium alloys, except welded 13V-llCr-3Al alloy, are recommended 

 for seawater applications. 



Columbium, tantalum and tantalum alloy Ta60 are recommended for 

 seawater service where the expense can be justified. 



Magnesium alloy FS-1 is unsatisfactory for seawater applications. 



Molybdenum, tungsten and lead (chemical, antimonial and tellurium), 

 because of their low uniform corrosion, can be recommended for seawater 

 applications where their mechanical and physical properties fulfill the 

 requirements . 



Tin, zinc and lead-tin solder are not recommended for seawater 

 service. Zinc of special purity, however, is used as sacrificial anodes 

 to protect more noble alloys in many seawater applications. 



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