An aluminum anode is a type of sacrificial anode. It is called a sacrificial anode because it sacrifices itself by becoming corroded instead of a more important metal item or piece of equipment. Sacrificial anodes are made from materials that corrode easily and are deliberately installed in pipes and tanks, leaving the rest of the system relatively corrosion-free. A sacrificial anode is also called a galvanic anode.
Special Features
High Current Output Capacity
Available In Numerous Shapes And Sizes
Suitable For All Submerged Structures
Ideal For Seawater Conditions
Easy To Replace
Key Features About Aluminum Anode
CUSTOMISATION
Aluminium anodes can be customised to fit almost any requirement in terms of shape, size, chemical composition, etc.
CURRENT CAPACITY
The average current capacity of aluminium anode is 2 500 A.h/kg. The average closed circuit potential is -1 100 mV versus Ag/AgCl seawater.
TYPE APPROVAL
Aluminium anode meets DNVGL, BV, CCS requirements.
STANDARDS
The aluminium anodes can be provided in accordance with DNVGL-RP-B401 and MIL-DTL-24779D. Other standards can be met upon request.
APPLICATION
Aluminum anodes are commonly used sacrificial anodes that keep many types of industrial equipment corrosion-free. They are used in:
Ship Hulls
Water Heaters
Pipelines
Distribution Systems
Above-ground Tanks
Underground Tanks
Refineries
| Capacity | 2 500A.h/kg |
| Consumption Rate | 3.3kg/(A.year) |
| Specific Gravity | 2 780kg/m³ |
| Closed Circuit Potential | -1 100mV vs Ag/AgCl/seawater |
| Material | %,by weight |
| Zinc（Zn） | 2.0~6.0 |
| Indium（In） | 0.01~0.03 |
| Copper（Cu） | ≤0.006 |
| Iron（Fe） | ≤0.12 |
| Silicon（Si） | ≤0.12 |
| Mangan（Mn） | ≤0.01 |
| Aluminium（Al） | Reminder |
Benifits Of Aluminium Anode
The other most common sacrificial anodes are magnesium and zinc anodes.
what are the benifits of using aluminum anodes?
Benefits of using aluminum anodes are:
- They are better than zinc or magnesium anodes because they are more active.
- Unlike magnesium anodes, they are not dangerous in salt or brackish water.
- They last longer and are the only type of sacrificial anode type that can be used in any water (e.g., fresh water, brackish or saline).
- They are 2.5 times thicker than zinc or magnesium anodes, thus they protect the equipment for a longer time.
Certification
DNV GL
CCS
