Magnesium Anodes are an efficient solution for cathodic protection, a method that protects buried or submerged metal structures from corrosion. These galvanic anodes are ideal for infrastructure such as pipelines, storage tanks, gas and water networks, and other metal structures in direct contact with soil or water.
Magnesium anodes act as a “sacrificial” metal. When connected to the metal structure to be protected, they corrode in a controlled manner, transferring corrosion from the base metal to the anode. This process extends the service life of the structure, preventing failures and metal degradation. The effectiveness of magnesium anodes is due to their high electrochemical potential, which is ideal for high-resistivity soils.
Features of Magnesium Anodes:
Composition: Mg 92% – Al 5% min. 7% max. – Zn 2% min. 4% max. – Si 0.3% – Cu 0.1% – Mn 0.15% – Fe 0.003% – Ni 0.003%
Standard models: 2 kg, 2.3 kg, 3 kg, 4 kg, 5 kg, 7.5 kg, 10 kg and 15 kg.
Soil potential: -1.5 V (Cu/CuSO4)
Consumption: 7.1 kg/A.year
Backfill mix:
The anode is coated with a backfill mix composed of the following elements:
Gypsum, bentonite and sodium sulphate.
Cable and Connection:
The cable used is a cathodic protection type from 2.5 mm² to 16 mm². Length: 5 m standard.
Packaging:
Each anode is individually packed in plastic packaging to protect it from moisture.
This plastic packaging must be removed when installing the anode.
Useful Links:
Article on Cathodic Protection
