H-1A Magnesium Vessel Anodes

Mag Treater

Magnesium anodes, while most commonly used in soil applications, can also be used for aqueous applications where a high driving potential is required. Magnesium H-1A (standard) alloy provides a driving potential of -1.55V CSE, when compared to Zinc (-1.10V CSE) or Aluminum (-1.05V CSE) it can be used in applications where rapid polarization may be required. Corrpro provides the H-1A alloy anode in a 3” diameter by 22” length or 3” diameter by 30” length.

Both the 3” by 22” and 3” by 30” anodes come with a 5/8” N/F/ threaded male end and female end. By going with this design option it gives the user easy threaded installation onto a bolt or through a hole, while also providing the option to thread multiple anodes together when applications require more surface area or weight. A common mounting option for the anode is to use the anode in conjunction with an Internal Vessel Anode Adaptor. Using this mounting option provides the user with easy monitoring options of the anode, while also providing easy access for replacement when the anode is consumed.


  • Comes in either 3” diameter by 22” length or 3” diameter by 30” length
  • Connects using 5/8” N.F. threaded male to female ends, allowing easy installation onto a Corrpro internal vessel anode adaptor or when connecting multiple anodes together
  • Ideal for situations requiring rapid polarization
  • Provides a Lower driving potential compared to the high potential alloy
Magnesium H-1A Alloy Chemical Composition
Corrpro aqueous magnesium anodes have a variety of fresh and salt water applications. These include ship hulls, barges, condensers, heat exchangers, chillers, piers, pilings, lock and dam tainters and sluice gates. Because magnesium produces a high-driving potential, these types of anodes are also used for rapid polarization of structures in salt water environments.

Corrpro supplies the H-1A alloy magnesium anode two options, 3” diameter by 22” length or 3” diameter by 30” length. When ordering a H1-A standard potential magnesium vessel anode, please consider the amount of anode and the size of anodes required for you to complete the task. Also, keep in mind if any internal vessel anode adaptors and anode adaptor leads are required.

Corrpro U.S. Materials

11616 W 59th Street
Sand Springs, OK 74063

Ph: 918.245.8791
Fax: 918.245.8798

Corrpro Canada Materials & Corrpower Manufacturing

10848 – 214 Street N.W.
Edmonton, Alberta  T5S 2A7
Phone: 780.447.4565
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