Half Shell Aluminum Bracelet Anode (Tapered End, Welded)
This indium-activated aluminium bracelet anode is specifically designed for the cathodic protection of submarine/offshore pipelines. Assembled as two half-shells, the anodes fit the pipe as a bracelet and shall be installed by thermit-welding. With tapered ends, our half-shell aluminium bracelet anodes are suitable for easy movements over stringer during pipeline laying.
Description
Quality Substrate Material
Casted in low-iron, high-purity alloys, our bracelet anode is designed as per the standard of ISO, NACE, DNV.
| Element | GALVALUM III (Al – Zn – In – Si) | DNV – RP – B401 – 2011 (Al – Zn – In) | GS EP COR 201 (Al – Zn – In) |
| Zinc (Zn) | 2 – 6% | 2.5 – 5.75% | 4.75 – 5.75% |
| Indium (In) | 0.01 – 0.02% | 0.015 – 0.04% | 0.015 – 0.02% |
| Cadmium (Cd) | — | 0.002% Max. | 0.002% Max. |
| Silicon (Si) | 0.08 – 0.2% | 0.12% Max. | 0.06 – 0.12% |
| Iron (Fe) | 0.13% | 0.09% Max. | 0.12% Max. |
| Copper (Cu) | 0.006% Max. | 0.003% Max. | 0.003% Max. |
| Others Total | 0.10% Max. | 0.10% Max | 0.10% Max. |
| Aluminum (Al) | Remainder | Remainder | Remainder |
Low Driving Voltage
This aluminium bracelet anode provides a stable performance in seawater and electrolytes containing chloride ions as its operating potential is kept between -1.05 to -1.10 volts relative to saturated calomel electrode(SCE).
| Operating Potential (-V) | 1.05 – 1.1 |
| Current Capacity | 1135 A.h/lbs (2500 A.h/kg) |
| Consumption Rate | 7.6 lbs/A·y |
| Current Efficiency | 90% Min. |
| Solubility | Solute Uniformly |
Strict Quality Control
By conforming to ISO 9001:2015 standards, our aluminum bracelet anode is manufactured, inspected, and tested in accordance with stringent procedures to ensure high quality.
Customized Configurations
The overall dimension of the anodes are usually manufactured to coincide with the overall dimension of the pipe. Custom-made configurations are available upon request.
Main Technical Parameters
| Shape | Bracelet |
|---|---|
| Substrate | Aluminium |
| environment | Seawater |
| Application | Pipelines |
