Circular Weld 



Transverse Butt Weld 



- O MPY 



• Max. Pit Depth, Mils. 



A Crevice Corrosion, Depth, Mils. 



P Perforated 



O 



*& 



.' " _ k'v U -1JHM 



o 



m & 



to #&l 



o 



1" ■ _ J_L"2£lI] 



Days 181 

 Depth, Ft. 5 



197 

 2,500 



402 

 2,500 



403 

 6,000 



181 

 5 



197 

 2,500 



398 

 5 



402 

 2,500 



403 

 6,000 



Figure 28. Corrosion rates, maximum pit depths and crevice corrosion of 



welded AISI Type 630-H925 precipitation hardening stainless steel 

 in seawater at the surface and at depth. 



87 



