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High Temperature Zinc Anode

Rustaway

High Temperature Zinc Anode

  • It is a well-established fact that conventional zinc alloys typically exhibit failure characteristics when subjected to temperatures exceeding 60°C. In such conditions, these alloys are prone to intergranular corrosion, a vulnerability that becomes pronounced when embedded in saline mud.
  • At elevated temperatures, standard zinc anodes may lose their effectiveness or, more critically, become counterproductive in the sacrificial cathodic protection (CP) systems intended for iron and steel structures. This ineffectiveness is due to the passivation of the zinc anode and the potential for polarity reversal – a hazardous scenario where the natural polarity of zinc and steel is reversed, leading to the steel functioning as an anode to the zinc. This results in the corrosion of the steel itself, ironically safeguarding the anode.
High Temperature Zinc Anode
  • In response to the need for high-temperature anode applications, we have engineered a specialized zinc anode capable of operating efficiently at temperatures as high as 90°C. This advanced high-temperature zinc anode is specifically designed for deployment in tanks transporting liquid cargo exposed to high temperatures, as well as in heated subsea pipelines and heat exchangers, ensuring reliable performance under challenging thermal conditions.

Premium Substrate Composition

The outstanding electrochemical efficacy of our high-temperature zinc anodes is guaranteed by meticulously managing the ratio of alloying elements mixed into the zinc base.

Superior Electrical Performance

The capacity of our high-temperature zinc anodes is rigorously assessed following the DNVGL-RP-B401 standard guidelines.

Tailor-Made Designs

Upon request, we offer customization of the anode’s dimensions, inserts, service duration, and current output to align precisely with your unique requirements.