Aluminium Anodes are another type of Sacrificial Anode that, although they have a lower voltage rate than magnesium anode, they have a much slower consumption rate than magnesium or zinc, and are ideally suited for seawater applications though can be used in fresh water too.
Typical Applications:
Aluminium anodes are well-suited to prevent corrosion of steel structures in seawater and fresh water and are commonly used on seawater based vessels, mechanical equipment, marine engineering and harbour facilities, seawater pipelines, ship hulls, ballast tanks and drilling platforms.
They are also used to reduce corrosion in structural metal objects such as buildings.