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Mixed Metal Oxide Tubular Anodes

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mixed metal oxide tubular anodes for all environments

To obtain the highest level of protection from an impressed current cathodic protection system, you need an anode with a very low consumption rate and high current capacity. With Corrpro’s tubular mixed metal oxide line of anodes, you get powerful protection and unsurpassed stability. 

The anodes are made using tubular titanium substrates which are coated with a mixed metal oxide catalyst. The catalyst is thermally applied to the titanium to form an extremely chemical resistant bond. This special composition brings together the stability of titanium with the conductive properties of the mixed metal oxide catalyst to achieve superior performance. 

In soil and fresh water applications, the anodes have a recommended current density of approximately 10 amp/ft2, and can be operated over 50 amp/ft2 in sea water environments. Even at these relatively high discharge levels, the anodes will be consumed at less than 1.0 mg/amp-yr.

The tubular design of these anodes also allows for numerous performance benefits. The tubular configuration provides a larger surface area which in turn permits greater current output and lower anode-to-earth resistance. The tubular style also means lead wire connections can be made in the center of the anode. 

With Corrpro tubular anodes, this connection consists of a brass wedge connector which grips firmly to the internal circumference of the anode. This connection is protected from moisture intrusion by a waterproofing sealant which fills the entire anode tube. One end of the anode is then covered with shrink tubing for a completely sealed electrical connection. Anodes are then tested for quality assurance.


Mixed metal oxide anodes have been proven to operate effectively in all types of environments including areas with extremely low pH levels under 1 and high chloride concentrations. 

While Corrpro tubular anodes can be used singularly, their unique configuration also makes them ideal for use in strings on offshore platforms or in deep groundbeds. In addition, the string anodes can be installed parallel to transmission pipelines or used for other special applications.