An Aluminum Anode for Harbor and Marine Engineering Facilities is a sacrificial anode used in cathodic protection (CP) systems to protect steel structures exposed to seawater. The aluminum anode corrodes preferentially, providing protective current to structures such as piers, jetties, offshore platforms, and subsea installations.
Aluminum Anode for Harbor and Marine Engineering Facilities
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Key Features
- High Current Output: Suitable for large marine structures
- Lightweight: Easier transportation and installation
- High Efficiency: Longer service life compared to zinc
- Stable Performance in Seawater: Reliable protection in marine conditions
- Self-Sacrificial Operation: No external power source required
- Cost-Effective: Lower life-cycle cost for large-scale projects
Material Composition (Typical)
- Aluminum (Al): Balance
- Zinc (Zn): 2.5% – 5.5%
- Indium (In): 0.015% – 0.04%
- Iron (Fe): ≤ 0.09%
- Silicon (Si): ≤ 0.10%
- Copper (Cu): ≤ 0.01%
Types
- Bracelet Anodes (for piles and tubular members)
- Plate / Block Anodes
- Stand-off Anodes
- Custom-designed anodes for offshore structures
Applications
- Harbor facilities (piers, wharves, sheet piles)
- Offshore platforms and jackets
- Subsea pipelines and risers
- Mooring systems and dolphins
- Coastal protection structures
- Marine terminals and loading facilities
