Magnesium Ribbon Anode

Magnesium anodes have the highest protection capability of any galvanic material. While these anodes are most commonly used in a cast form, certain structures can be better protected through the use of extruded magnesium configurations. Extruded magnesium anodes are most suitable for cathodic protection of steel structures buried or immersed in high resistivity electrolytes.

As a flexible anode material, our magnesium ribbon anode consists of an extruded ribbon of magnesium around a central continuous galvanized steel core which ensures uniform current and efficient electrical discharge. Due to the ribbon’s greater surface area to weight ratio, magnesium ribbon anode can provide higher current outputs compared to other magnesium anodes.

This magnesium ribbon anode is generally used in higher resistivity soil or freshwater, particularly in areas with restricted space. It is often used to achieve cathodic protection of well coated buried pipelines, pipelines in casings, crossing pipe sections, internal water tanks surfaces and as grounding protection against strong electrical interference, among other areas.



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Quality Substrate Material

Our magnesium ribbon anode is produced using high-purity magnesium, conforming to ASTM B843 – M1C standards.

Element Content
Aluminum (Al) 0.01%
Manganese (Mn) 0.5-1.3%
Zinc (Zn)
Silicon (Si)
Copper (Cu) 0.02%
Nickel (Ni) 0.001%
Iron (Fe) 0.03%
Other Each 0.05%
Others Total 0.3%
Magnesium (Mg) Remainder

High Current Output

This extruded magnesium ribbon anode has an increased surface area-to-mass ratio. With a high driving potential of -1.7V to -1.75V (CSE), it can generate more current than their cast magnesium counterparts. Generally, the current output is three to seven times greater than that found with cast anodes of the same weight.

Technical Measurement Performance
Open Circuit Potential (-V) 1.7 – 1.75
Close Circuit Potential (-V) 1.58 – 1.62
Current Density Soil: 3 mA/ft. (10 mA/m) / Freshwater: 0.9 mA/ft. (3 mA/m)
Current Capacity 500A.h/lbs (1100A.h/kg)
Current Efficiency 50% min.

Remarks: Open/close circuit potential is with respect to a Saturated Calomel Reference Electrode.

Uniform Current Distribution

The magnesium ribbon anode is constructed with a solid galvanized steel core, which runs lengthwise through the anode to ensure efficient electrical discharge as current is evenly distributed along the length of the structure.

Easy Installation

The magnesium ribbon anode is easy to bend and has a small footprint. It is mainly installed as a coil around the protected body, especially in cathodic protection for long-distance pipelines, crossing pipelines, large tanks or silos among other structures. It functions automatically after installation, so no frequent maintenance is required, and does not cause any harmful interference with the surrounding environment.

Customized Configurations

The magnesium ribbon anode is flat in shape, and our standard magnesium ribbon anode is manufactured in 3/4” by 3/8” flexible coils. A 0.135″ steel core wire is embedded in the length of anode and the ribbon anode weighs approximately 0.243 pounds per  foot in length. The length can be adjusted upon request.

Main Technical Parameters






3/4″ × 3/8″

Core Wire Diameter


Core Wire Eccentricity



1000 ft. (305m)


110 kg (243 lbs)




Storage Tank


We employ ISO 9001:2015 quality management system and rigorous internal testing standards to ensure the optimum lifespan and performance of our anodes. Each anode is labelled with a unique serial number for quality tracking.

Testing Details Chemical Composition Electrochemical Performance Physical Properties
Testing Standard ATSM B843 ATSM G97 Foundry ITP
Testing Content Chemical Analysis Circuit Potential / Current Capacity / Current Efficiency Dimension & Weight / Surface Finish / Core Eccentricity
Equipments Optical Emission Spectrometer OBLF QSN 750 Electrochemical Analyzer EPI 200 Calibrated Digital Measuring Devices

Packaging Information

We have strict packing protocols to guarantee safe delivery of our products. Clear shipping marks and documentation make delivery acceptance straightforward and simple.

Item No. Coil Length Wooden Spool Dimensions Net Weight Gross Weight
JA-MGR-1 1,000 ft. (305m) Ф27.6″ × 17.3″(Ф700×440 mm) 243 lbs (110 kg) 276 lbs (125 kg)

Remarks: Custom packing is available upon request.

Shipping Documents:

  • Proforma invoice
  • Packing list
  • Testing reports (Chemical Composition, Electrochemical Properties Test, Certificate of Compliance)
  • Certificate of origin (upon request)

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