Characteristics and Functions of Magnesium Anodes:

Magnesium anodes, also known as magnesium alloy anodes or magnesium sacrificial anodes, are used in cathodic protection systems and are essential equipment and materials for preventing electrochemical corrosion. They are characterized by low density, high theoretical capacitance, negative potential, low polarization rate, and a high driving voltage for steel (>0.6V), making them suitable for protecting metal components in high-resistivity soils and freshwater environments. Classification of magnesium anodes:

Based on production processes, they are mainly divided into cast anodes and extruded anodes.

Based on application, they are primarily classified as water heater anodes and engineering anodes.

Based on shape, they are further categorized into rod-shaped, strip-shaped, D-type, S-type, and custom-shaped anodes.

Based on material, they are mainly classified into AZ63, AZ31, AZ91, and other anodes.

Applications of Magnesium Anodes:

Commonly used D and S-type anodes are mainly used in soil environments, while strip anodes are primarily applied in high-resistivity soils, freshwater, and confined spaces, serving as engineering anodes. Rod-shaped anodes are typically used for corrosion protection in electric water heaters and boilers.

Common Specifications of Magnesium Alloy Sacrificial Anodes

3. Backfill Formulation for Magnesium Alloy Sacrificial Anodes