hull zinc/aluminum ANODE
Aluminum and zinc hull anodes are customizable through casting to accommodate various hull conditions.
Specifications
Aluminum (Al) and zinc (Zn) sacrificial hull anodes are available in a diverse range of configurations, suitable for both welding and bolting applications. The following list displays the common "standard" configurations. Moreover, Keeper has the capability to customize anodes to any desired size or chemical composition as per your needs. Feel free to reach out to us for guidance on tailoring anodes to meet your particular specifications effectively.
Bolted
| Anode type | Al / Zn | Gross weight (kg) | Net weight (kg) | L1 (mm) | L2 (mm) | W (mm) | T (mm) | D (mm) |
|---|---|---|---|---|---|---|---|---|
| A3.5HB | Al | 3.6 | 3.5 | 160 | 300 | 150 | 32 | 26 |
| A5.0HB | Al | 5.2 | 5 | 160 | 300 | 150 | 50 | 26 |
| A6.5HB | Al | 6.7 | 6.5 | 160 | 300 | 150 | 60 | 26 |
| A7.0HB | Al | 7.2 | 7 | 230 | 450 | 120 | 50 | 16 |
| A12.5HB | Al | 12.8 | 12.5 | 160 | 300 | 150 | 115 | 26 |
| Z10.0HB | Zn | 10.2 | 10 | 160 | 300 | 150 | 32 | 26 |
| Z15.2HB | Zn | 15.4 | 15.2 | 160 | 300 | 150 | 50 | 26 |
Welded
| Anode type | Al / Zn | Gross weight (kg) | Net weight (kg) | L (mm) | W (mm) | T (mm) | D (mm) |
|---|---|---|---|---|---|---|---|
| A1.0H1 | Al | 1.2 | 1.0 | 150 | 58 | 45 | 300 |
| A2.0H1 | Al | 2.2 | 2.0 | 200 | 100 | 40 | 350 |
| A5.0H1 | Al | 5.5 | 5.0 | 300 | 150 | 50 | 450 |
| A12.0H1 | Al | 12.5 | 12.0 | 530 | 130 | 66 | 680 |
| A14.0H1 | Al | 14.6 | 14.0 | 610 | 135 | 70 | 760 |
| Z1.0H1 | Zn | 1.3 | 1.0 | 238 | 32 | 23 | 388 |
| Z3.0H1 | Zn | 3.1 | 3.0 | 160 | 85 | 33 | 310 |
| Z9.5H1 | Zn | 9.7 | 9.5 | 355 | 85 | 45 | 505 |
| Z15.0H1 | Zn | 16.0 | 15.0 | 450 | 155 | 31 | 600 |
| Z30.0H1 | Zn | 31.4 | 30.0 | 200 | 100 | 40 | 350 |
Electrochemical / Physical properties
| Alloy type | Keep 7 | Keep 10 |
|---|---|---|
| Open circuit potential | (-) 1.08 V vs Ag/AgCl sw. | (-) 1.08 V vs Ag/AgCl sw. |
| Closed circuit potential(1) | (-) 1.05 V vs Ag/AgCl sw, | (-) 1.05 V vs Ag/AgCl sw, |
| Seawater capacity @25C | 1100 A-Hr/lb. (2420 A-Hr/Kg.) | 1100 A-Hr/lb. (2420 A-Hr/Kg.) |
| Seawater capacity @ 5C | 1100 A-Hr/lb. (2420 A-Hr/Kg.) | Variable (2) |
| Seabed mud capacity (3) | 950 A-Hr/lb (2090 A-hr/Kg.) | 950 A-Hr/lb (2090 A-hr/Kg.) |
| Seabed mud capacity @ 5C | 950 A-Hr/lb (2090 A-hr/Kg.) | Variable (2) |
| Alloy density | 0.098 lb/in3 (2.71 gm/cm3) | 0.098 lb/in3 (2.71 gm/cm3) |
| Cost ratio | Low Iron (Fe) Aluminum (Al) Ingot < 0.05 Fe | Normal Grade Al Sows |
| Keep 7 | Keep 10 | ||
|---|---|---|---|
| Iron (Fe) | 0.07 max | Iron (Fe) | 0.10 max |
| Silicon (Si) | 0.10 max | Silicon (Si) | 0.10 max |
| Copper (Cu) | 0.003 max | Copper (Cu) | 0.006 max |
| Zinc (Zn) | 4.75 – 5.25 | Zinc (Zn) | 3.00 – 6.00 |
| Indium (In) | 0.015 – 0.025 | Indium (In) | 0.010 – 0.020 |
| Titanium (Ti) | 0.025 max | Titanium (Ti) | 0.025 max |
| Cadmium (Cd) | Part of others | Cadmium (Cd) | Part of others |
| Others (each) | 0.02 max | Others (each) | 0.02 max |
| Aluminum (Al) | Remainder | Aluminum (Al) | Remainder |
Hull Anodes Gallery
Diver installed
Replace depleted anodes
