Magnesium Anodes

EPS offer magnesium anodes in two grades.
Standard & High potential


Magnesium anodes are most economical when used on land where high driving potentials make them suitable for high resistivity soils and in brackish water and estuarine locations where the combination of salt and fresh water also gives high resistivities.

EPS offer magnesium anodes in two grades.

: : Standard
: : High potential

Composition and characteristics

Standard (Wt. %)
High potential (Wt. %)
  Aluminium   5.3 – 6.7 %   0.01 max
  Zinc   2.5 – 3.5 %   0.03 max
  Manganese   0.15 % min   0.5 - 1.3
  Copper   0.02 % max   0.02 max
  Silicon   0.1 % max   0.05 max
  Iron   0.003 % max   0.03 max
  Others   0.03 % max   0.03 max
  Magnesium   Remainder   Remainder
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Anodes for buried structures

The anodes for buried pipelines, tanks and similar structures are normally supplied packaged in a cotton bag containing a rapid wetting, moisture-retaining backfill, which reduces the electrolyte resistivity adjacent to the anode, improved performance.

The standard backfill composition for magnesium anodes used of protecting underground structures is as given below :

Gypsum - 75 %
Bentonite - 20 %,br> Sodium Sulphate - 5 %

The anode supplied with PVC/XLPE insulated copper cables of standard size and length as per requirements

Types of Magnesium Anodes