It is known that common zinc alloys tends to fail at temperature above 60 degree . Above this temperature, zinc alloys can suffer from inter-granular corrosion, especially when buried in saline mud. When at high temperature, common zinc anodes may become ineffective or even detrimental to the steel facility protected by the sacrificial cathodic protection system. The zinc anode suffers passivation and polarity reversal —— a dangerous condition in which zinc and steel reverse their natural polarity and steel becomes anodic to zinc, corroding itself to protect the anode.
To meet the demand of anode applications at high temperature, we develop this special anode that can operate successfully at elevated temperatures up to 90 degree , where conventional anodes tend to collapse. It strictly conforms to ASTM B418 Type II standards.
- High temperature can reach 40 degree -75 degree
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20 degree |
800 A.h/kg |
-1030 mV |
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60 degree |
770A.h/kg |
-1010 mV |
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80 degree |
770A.h/kg |
-980 mV |
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90 degree |
750A.h/kg |
-950 mV |
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