Alloys are listed in the order of the potential they exhibit in flowing sea water. Certain alloys may become active and exhibit a potential near -0.5 volts in low velocity or poorly aerated water, and at shielded areas.

Alloys are listed in the order of the potential they exhibit in flowing sea water. Certain alloys indicated by the symbol (symbol) in low velocity or poorly aerated water, and at shielded areas, may become active and exhibit a potential near -0.5 volts.