Spherical Aluminum Heat Treater Anode

This aluminum anode ball is a compact easily replaced sacrificial anode which is installed in heat treaters, pressure vessels and other production vessels. The aluminum heater treater anodes work optimally at relatively high temperatures and low chloride saltwater or freshwater environments.




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Quality Substrate Material
Casted from high-voltage and high-potential alloy, our aluminum ball anode is designed to meet the standard of ISO, NACE, DNV.

Element GALVALUM III DNV-RP-B401-2011 GS EP COR 201
Zinc (Zn) 2.0% ~ 6.0% 2.5% ~ 5.75% 4.75% ~ 5.75%
Indium (In) 0.01% ~ 0.02% 0.015% ~ 0.04% 0.015% ~ 0.02%
Silicon (Si) 0.08% ~ 0.2% 0.12% max. 0.06% ~ 0.12%
Iron (Fe) 0.13% max. 0.09% max. 0.12% max.
Copper (Cu) 0.006% max. 0.003% max. 0.003% max.
Cadmium (Cd) 0.002% max. 0.002% max.
Total Impurities 0.1% max. 0.1% max. 0.1% max.
Aluminum (Al) Remainder Remainder Remainder

Low Driving Voltage
This aluminium ball anode provides a stable performance in seawater and electrolytes containing chloride ions as its operating potential is kept between -1.10 to -1.15 volts relative to saturated calomel electrode(SCE).

Technical Measurement Performance
Open Circuit Voltage (-V) 1.10 min.
Closed Circuit Voltage (-V) 1.05 min.
Current Capacity 1135 A.h/lbs (2500 A.h/kg)
Current Efficiency 90% min.
Consumption Rate 7.6 lbs/A·y (3.4 kg/A·y)

Customized Configurations
The standard anode size is illustrated below. Custom-made shapes, weights and configurations are available upon request.

Item No. Ball Diameter Insert Dimensions Weight
JA–AL–B47 Ø9.84” (Ø250 mm) Ø1.3” (Ø34 mm) 4.0” (102 mm) 1” 47.5 lbs (21.5 kg) 49.5 lbs (22.5 kg)

Main Technical Parameters








Storage Tank, Process Vessel, Heat Treater


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 DNV-RP-B401 NACE TM0190 Foundry ITP
Testing Content Chemical Analysis Circuit Potential / Current Capacity / Current Efficiency / Electrical Resistance Dimension & Weight / Surface Finish / Steel Insert
Equipments Optical Emission Spectrometer OBLF QSN 750 Electrochemical Analyzer EPI 200 Calibrated Digital Measuring Devices

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