Round Condenser Magnesium Anode

H-1 alloy magnesium condenser anodes for freshwater and aqueous environments, ideal for various applications.



We produce a comprehensive range of H-1 alloy magnesium condenser anodes tailored for freshwater or aqueous settings with higher electrolyte resistivity, suitable for various equipment like heat exchangers, condenser water boxes, cooling towers, intercoolers, and tank interiors.

Quality Substrate Material
Crafted using premium magnesium alloy, our condenser anode complies with the American ASTM B843 – AZ63C standard.

Element Content
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 standard magnesium condenser anode is cast using H-1 alloy, providing a standard potential of -1.55 volts compared to the saturated calomel electrode (SCE). We offer a high-potential magnesium anode 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
The magnesium condenser anode can be obtained with a choice of bare or plastisol-coated options. Plastisol coating, made of polyvinyl chloride (PVC), acts as a robust shield against electrical currents on the anode’s sides, ends, and contacting surfaces.

Customized Configurations
Keeper offers a range of standard sizes in stock at our warehouse. With our extensive experience of over 50 years in production, we have the capability to tailor the anode shape, sizes, and lifespan according to your particular requirements upon your request.

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



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 adhere to stringent packaging protocols to ensure the secure delivery of our products. Clear labeling and thorough documentation streamline the acceptance of deliveries, making the process straightforward and hassle-free.

Item No. Anode Qty (per pallet) Pallet Dimensions (L x W x H) Net Weight Gross Weight
KA-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)