Magnesium Sacrificial Anode

- Commonly used in cathodic protection systems because Mg metal has a more negative potential than other galvanic materials. Our production plant uses high quality magnesium metal which exceeds normal standards used to manufacture anodes.
- R, D and S Type anodes are available as stock items in the specifications which follow.
- Any item required that is not a stock item can be manufactured according to the customer specification. This would include Hull, Tank and Rectangular anodes.
- All can be supplied in packaged forms.

(left) R Type D Type (right)
dsanodes

Click on an anode below for more information

Cast MG Anode Specifications (D Shape)

Cast Mg Anode Specifications

D Shape

magnesium sacrificial anode
magnesium anode table

Cast MG Anode Specifications (R Shape)

Cast Mg Anode Specifications

R Shape
magnesium sacrificial anode
magnesium anode table

Cast MG Anode Specifications (S Shape)

Cast Mg Anode Specifications

S Shape
magnesium sacrificial anode
magnesium anode table

High Potential Mg Anode

High Potential Mg Anode

- Made from high purity Mg metal these anodes are manufactured using advanced casting technology and have superior electrochemical properties.
- Tested to ASTM97-89.
- In service the anode is consumed uniformly thereby extending its useful life.
- Usually used in soils with a resistance higher than 2000 ohm/cm.

Chemical Composition
magnesium anode table
Electrochemical Properties
magnesium anode table

H-1 Alloy Mg Anode

H-1 Alloy Mg Anode

- Made from high purity Mg metal these anodes are manufactured using advanced casting technology and have superior electrochemical properties.
- Tested to ASTM97-89.
- In service the anode is consumed uniformly thereby extending its useful life.
- Usually used in soils with a resistance higher than 2000 ohm/cm.

Chemical Composition %
magnesium anode table
Electrochemical Properties
magnesium anode table

Pre-Packaged Mg Anode

Pre-packaged Mg Anode

- Anode assembly with cable, backfill, epoxy resin seal and packaged in a cotton bag.
- Recyclable and easily decomposable materials.
- Environmentally safe. Harmful elements in backfill lower than specified allowable limits.
- Composition of Backfill: Gypsum 75%, Bentonite 20%, Anhydrous Sodium Sulphate 5%.

Backfill Pollutants Tolerance
mgtable8magnesium sacrificial anode

Available Cabling Insulation/Sheath
• PVC/PVC, XLPE/PVC, HMWPE
Cable Size
• 6 mm2, 10 mm2, 16 mm2
Anode to Cable Connection Resistance
• 0.001 ohm max
Anode to Cable Pull Out Strength
• 5 x prepackage anode weight min

Mg Cast Rod Anode - AZ63 Alloy

Mg Cast Rod Anode - AZ63 Alloy

Commonly used to protect water heaters from corrosion.

Chemical Composition %
magnesium anode table

Electrochemical Properties
magnesium anode table
magnesium anode tablemagnesium anode table

Mg/Al Extruded Rod

Mg/Al Extruded Rod

- High current to weight ratio and suitable for applications where a small diameter is sufficient to supply the required cathodic current.
- Mg High Potential, Standard Potential (AZ31) and Al alloys available.
- Typically used to protect water heaters, water storage tanks and pre-polarisation of offshore structures.

Chemical Composition %
magnesium anode table
Extruded Rod Anode Size Specification
magnes5
Mg
magnesium anode table
Al
magnesium anode table

Images

magnesium sacrificial anodemagnesium sacrificial anodemagnesium sacrificial anodemagnesium sacrificial anode