Magnesium Drive-In Anode

This magnesium drive-in anode is an high-purity extruded magnesium rod with a steel core, which has a machined “spike” or “45-degree angle cut” end for easy penetration through the soil.

The drive-in anode is fitted with a steel hexagonal head and threaded UHMW polyethylene driving cap to protect the lead wire and soldered connection during installation.

An adjustable stainless steel hose clamp with set screw is included to allow easy attachment of the anode to the protected structure.

Our magnesium drive-in anode is used for the cathodic protection of gas service entrance piping or gas distribution risers, as termination of tracer wire in the utilities industry and other specialty applications. Depending upon soil conditions, the life expectancy of this drive-in anode ranges from 7 to 10 years.



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Quality Substrate Material

Our magnesium drive-in anode is manufactured under the ASTM B843–M1C standard for high potential or ASTM B843–AZ63B standard for standard potential, in the following composition:

Element High Potential (ASTM B843 – M1C) Standard Potential (ASTM B843 – AZ63B)
Aluminum (Al) 0.01% 5.3 – 6.7%
Manganese (Mn) 0.5 – 1.3% 0.15 – 0.7%
Zinc (Zn) 2.5 – 3.5%
Silicon (Si) 0.05% 0.1%
Copper (Cu) 0.02% 0.02%
Nickel (Ni) 0.001% 0.002%
Iron (Fe) 0.03% 0.003%
Other Each 0.05%
Others Total 0.3% 0.3%
Magnesium (Mg) Remainder Remainder

Different Electro-potential Options

There are two common cast magnesium anode available:

  1. Standard Magnesium Alloy Anode

A standard potential anode has a nominal corrosion potential of -1.55 volts (relative to a Cu/CuSO4 reference electrode). It is ideal for soil conditions where resistivity is under 20 Ω·cm.

  1. High Potential Magnesium Alloy Anode

High potential magnesium anodes have higher open circuit voltage and driving potential. It produces an open circuit potential of negative 1.7~1.75 volts, which is 20~30% greater than is typically found with conventional magnesium anodes. This yields more current output and achieves a greater efficiency; reaching a  sufficient cathodic protection level whilst maintaining a lower consumption of the anodes. They are ideally suited for structures buried in soils with resistivities exceeding 2,000 Ω·cm, or for structures containing numerous corrosion clusters.

Technical Measurement High Potential Standard Potential
Open Circuit Potential (-V) 1.7 ~ 1.75 1.5 ~ 1.55
Close Circuit Potential (-V) 1.58 ~ 1.62 1.45 ~ 1.50
Min. Current Capacity 500 A.h/lbs (1100 A.h/kg) 550 A.h/lbs (1230 A.h/kg)
Min. Current Efficiency 50% 55%

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

Easy Installation

Angled point allows the anode to be directly driven into the ground with no requirement for pre-digging or augering of holes. One man can install it in minutes using only a hammer and screwdriver.

Customized Configurations

Our magnesium drive-in anode comes in three standard sizes below. The standard anode is supplied with 3 feet of AWG #12 TW lead wire. Other anode sizes and wire lengths are available upon request.

Item No. Weight Diameter Length
JA-MG-DR0.5 0.5 lbs (0.23 kg) Ø0.84″ (Ø21.5 mm) 12″ (305mm)
JA-MG-DR1.0 1.0 lbs (0.46 kg) Ø1.32″ (Ø33.5 mm) Ø1.32″ (Ø33.5 mm)
JA-MG-DR1.5 1.5 lbs (0.69 kg) Ø1.32″ (Ø33.5 mm) 18″ (458mm)

Main Technical Parameters






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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-DR0.5 500 25″ × 14″ × 22″ (630 × 350 × 570mm) 276lbs (125kg) 309lbs (140kg)
JA-MG-DR1.0 500 24″ × 35″ × 18″ (620 × 880 × 450mm) 661lbs (300kg) 728lbs (330kg)
JA-MG-DR1.5 500 35″ × 35″ × 18″ (880 × 880 × 450mm) 838lbs (380kg) 893lbs (405kg)

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)