Square High-Temperature Zinc Anode
Specialized zinc anode for high temp environments, up to 90°C. Ideal for liquid cargo tanks, subsea pipelines, and heat exchangers.
Description
Common zinc alloys are susceptible to failure beyond 60°C due to intergranular corrosion, especially in saline mud. High temperatures can render typical zinc anodes ineffective or even harmful to iron and steel structures. This is because the zinc anode undergoes passivation and polarity reversal, creating a hazardous scenario where steel corrodes itself to protect the anode.
In response to the demand for high-temperature anode applications, we’ve developed a specialized zinc anode capable of operating effectively at temperatures up to 90°C. Our high-temperature zinc anode is tailored for use in tanks carrying liquid cargo exposed to high temperatures, as well as in hot subsea pipelines and heat exchangers.
Quality Substrate Material
The exceptional electrochemical performance of high-temperature zinc anodes is guaranteed by precisely managing the ratio of alloy elements incorporated into the zinc substrate.
| Element | ≤ 50°C | 50°C ~ 90°C |
| Aluminum (Al) | 0.005% max. | 0.1% ~ 0.25% |
| Magnesium (Mg) | — | 0.05% ~ 0.15% |
| Lead (Pb) | 0.003% max. | 0.006% max. |
| Iron (Fe) | 0.0014% max. | 0.002% max. |
| Copper (Cu) | 0.002% max. | 0.001% max. |
| Cadmium (Cd) | 0.003% max. | 0.001% max. |
| Total Impurities | — | 0.1% max. |
| Zinc (Zn) | Remainder | Remainder |
Excellent Electric Capacity
The capacity of high-temperature zinc anodes is evaluated following the guidelines outlined in the DNVGL-RP-B401 standards.
| Technical Measurement | 20°C | 60°C | 80°C | 90°C |
| Closed Circuit Voltage (-V) | 1.03 | 1.01 | 0.98 | 0.95 |
| Current Capacity | 800 A.h/kg | 770 A.h/kg | 774 A.h/kg | 750 A.h/kg |
Customized Configurations
Our skilled engineers are available to tailor the anode size, inserts, service life, and output current to align with your specific requirements upon request.
