Aluminum Ballast Tank Hull Anodes
Cast aluminium anodes offer a stable current output in seawater or marine environments with optimum performance and a cost effectiveness.
Aluminium’s physical properties make it a popular choice for off-shore anodes due to its light weight, simplicity of installation and adaptability to cast into a variety of sizes.
We offer a comprehensive selection of aluminium anodes in various sizes, weights and core configurations, with a production capacity of up to 5,000 tons per year.
| Element | GS EP COR 201 |
| Al – Zn – In | |
| Zinc (Zn) | 4.75 – 5.75% |
| Indium (In) | 0.015 – 0.02% |
| Cadmium (Cd) | 0.002% Max. |
| Silicon (Si) | 0.06 – 0.12% |
| Iron (Fe) | 0.12% Max. |
| Copper (Cu) | 0.003% Max. |
| Others Total | 0.10% Max. |
| Aluminum | Remainder |
| Operating Potential (Negative Volts) | Current Capacity | Consumption Rate | Current Efficiency | Solubility |
| -1.05 – 1.10 | 1135A.h/lbs (2500A.h/kg) | 7.6lbs per amp.yr | 90% Min. | Solute Uniformly |
Open/close circuit potential is with respect to a Saturated Calomel Reference Electrode.
| Anode Model | Unit Weight | Anode Size (L × W × H) | Steel Core Size | Steel Core Type |
| JA – AL – H10 | 10lbs (4.5kg) | 6 1/2″ × 1 1/4″ × 14″ (165 × 32 × 356mm) | 3/16″ × 1 1/4″ (4.8 × 32mm) | Two Cast-in Galvanized Steel Straps, Mounting Holes are provided per request |
| JA – AL – H15 | 15.5lbs (7.0kg) | 5″ × 1 3/8″ × 21 1/2″ (127 × 35 × 546mm) | ||
| JA – AL – H32 | 32lbs (14.5kg) | 10″ × 2″ × 20″ (254 × 51 × 508mm) | 1/4″ × 1 1/2″ (6.4 × 38mm) |
| Anode Model | Unit Weight | Anode Size (L × W × H) | Steel Core Size | Steel Core Type |
| JA – AL – H12 | 12lbs (5.4kg) | 4 1/2″ × 2 1/4″ × 14″ (114.5 × 57 × 356mm) | 1/4″ × 1 1/2″ (6.35 × 38mm) | One Cast-in Galvanized Steel Straps, Mounting Holes are provided per request |
| JA – AL – H20 | 20lbs (9.1kg) | 4 1/2″ × 2 1/4″ × 24″ (114.5 × 57 × 610mm) | ||
| JA – AL – H23 | 23lbs (10.4kg) | 5″ × 1 15/16″ × 24″ (127 × 59 × 610mm) | ||
| JA – AL – H29 | 29lbs (13.2kg) | 5″ × 2 1/2″ × 24″ (127 × 63.5 × 610mm) |
| Anode Model | Unit Weight | Anode Size (L × W × H) |
| JA – AL – BT21 | 21lbs (9.5kg) | 2″ × 2″ × 48″ (50.8 × 50.8 × 1219mm) |
| JA – AL – BT26 | 26lbs (11.8kg) | 2″ × 2″ × 60″ (50.8 × 50.8 × 1524mm) |
| JA – AL – BT30 | 30lbs (13.6kg) | 2 1/2″ × 2 1/2″ × 48″ (63.5 × 63.5 × 1219mm) |
| JA – AL – BT39 | 39lbs (17.7kg) | 2 1/2″ × 2 1/2″ × 60″ (63.5 × 63.5 × 1524mm) |
| JA – AL – BT48 | 48lbs (21.8kg) | 3″ × 3″ × 48″ (76.2 × 76.2 × 1219mm) |
Other configurations are available on request.
All weights and dimensions are nominal and subject to variation in material compositions and Jennings Anodes foundry tolerance.
We employ rigorous internal casting and testing standards to ensure the optimum lifespan and performance of our Anodes. Third party testing is available upon request.
Each anode is labelled with a unique serial number for quality tracking.
| Testing | Chemical Composition | Electrochemical Properties | Physical Properties & Appearance | ||
| Testing Standard | ISO 9001 Quality Management System and Foundry Internal Quality Standard | ||||
| DNVRP B401 | NACE TM0190 | NACE SP0387, Foundry ITP | |||
| Item | Chemical Analysis | Circuit Potential, Current Capacity, Current Efficiency | Surface Appearance, Weight & Dimensions, Steel Core, Resistance between Steel Core and the Anode. | ||
| Equipment & Devices | Optical Emission Spectrometer OBLF QSN 750 | Electrochemical Analyzer EPI 200, Reference Electrode | Calibrated digital measuring devices | ||
We have strict packing protocols to guarantee safe delivery of our products. Clear shipping marks and documentation to make delivery acceptance straightforward and simple.
Custom packing is available upon request.
Shipping Documents:
- Proforma invoice
- Packing list
- Testing reports (Chemical Composition, Electrochemical Properties Test, Certificate of Compliance)
- Others upon request (e.g. Certificate of Origin)
What are aluminium anodes?
Aluminium anodes are a type of sacrificial anode.
Although the voltage rate is lower than that of magnesium anodes, aluminium anodes have a much slower consumption rate, making them ideally suited for seawater applications.
Typically, aluminium anodes are used to prevent corrosion of steel structures in seawater and fresh water and are commonly used on marine vessels, mechanical equipment, marine engineering, harbour facilities, seawater pipelines, ship hulls, ballast tanks and drilling platforms.
