Round Magnesium Condenser Anode

To address the applications in fresh water or aqueous environments where the electrolyte resistivity is higher, we manufacture a full product line of H-1 alloy magnesium condenser anodes, suitable for use in heat exchangers, condenser water boxes, cooling towers, intercoolers and tank interiors.




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Quality Substrate Material
Constructed from high grade magnesium alloy, our condenser anode conforms to meet American standard ASTM B843 – AZ63C.

Element Contnet
Aluminum (Al) 5.3% ~ 6.7%
Manganese (Mn) 0.15% ~0.7%
Zinc (Zn) 2.5% ~3.5%
Silicon (Si) 0.1% max.
Copper (Cu) 0.02% max.
Iron (Fe) 0.03% max.
Nickel (Ni) 0.02% max.
Other Impurity (each) 0.05% max.
Total Impurities 0.03% max.
Magnesium (Mg) Remainder

Custom-made Electro-potential Options
Our magnesium condenser anode is normally cast with H-1 alloy for standard potential of -1.55 volts relative to saturated calomel electrode(SCE). High potential magnesium anode is available upon request.

Technical Measurement Performance
Open Circuit Potential (-V) 1.5 ~ 1.55
Close Circuit Potential (-V) 1.45 ~ 1.5
Min. Current Capacity 550 A.h/lbs (1230 A.h/kg)
Current Efficiency 55% min.

Optional Plastisol Coating
Magnesium condenser anode is available as either bare or plastisol coated. The plastisol (polyvinyl chloride) coating on the sides, ends, and faying surfaces serves as an excellent current barrier shield.

Customized Configurations
Standard sizes below are available at Jennings Anodes warehouse. Based on over 50 years’ production experience, Jennings Anodes can customize the anode shape, sizes, and service life to meet your specific needs upon request.

Item No. Diameter Height Weight Insert Dimensions
JA-MG-R24 5.0” (127 mm) 2.0” (51 mm) 2.4 lbs (1.1 kg) Ø 1/2” (Ø12.7 mm)
JA-MG-R49 5.0” (127 mm) 4.0” (102 mm) 4.9 lbs (2.2 kg) Ø 1/2” (Ø12.7 mm)

Main Technical Parameters






Fresh Water


Condenser Water Box, Heat Exchanger, Cooling Tower, Intercooler


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
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. Anode Qty (per pallet) Pallet Dimensions (L x W x H) Net Weight Gross Weight
JA-MG-R24 500 41″ × 41″ × 22″ (1050 × 1050 × 550mm) 1213lbs (550kg) 1312lbs (595kg)

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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