The AT-8 Type Aluminum Anode is a specialized aluminum alloy sacrificial anode designed for the cathodic protection (CP) of water ballast tanks in marine vessels. Manufactured from Al-Zn-In alloy, this anode provides stable electrochemical performance, high current efficiency, and controlled dissolution in confined ballast tank environments.

Ballast tanks are subject to alternating wet and dry conditions, oxygen

AT-8 Type Aluminum Anode

$999,999,999.00

Quantity

Key Features

Designed for Ballast Tank Environments (wet/dry cycles)

Stable Electrochemical Potential (~ -1.05 to -1.10 V vs Ag/AgCl)

High Current Efficiency (≥ 85%)

Uniform and Controlled Consumption

Low Hydrogen Evolution (enhanced safety)

Long Service Life and Reliable Performance

Material Composition (Typical – AT-8 Alloy)

Element Content (%)

Aluminum (Al) Balance

Zinc (Zn) 4.0% – 6.0%

Indium (In) 0.015% – 0.035%

Silicon (Si) ≤ 0.10%

Iron (Fe) ≤ 0.09%

Copper (Cu) ≤ 0.01%

Others ≤ 0.02%

Types

Plate Aluminum Anodes

Stand-off Ballast Tank Anodes

Flush-mounted Anodes

Weld-on or Bolt-on Anodes

Custom ballast tank anodes

Applications

Ship ballast water tanks

Double hull tankers

Bulk carriers and container ships

Offshore vessels and FPSO ballast compartments

Marine internal compartments exposed to seawater

Element	Content (%)
Aluminum (Al)	Balance
Zinc (Zn)	4.0% – 6.0%
Indium (In)	0.015% – 0.035%
Silicon (Si)	≤ 0.10%
Iron (Fe)	≤ 0.09%
Copper (Cu)	≤ 0.01%
Others	≤ 0.02%

AT-8 Type Aluminum Anode

Product Info