Magnesium anodes are typically available in two alloy compositions. The first is typically a combination of 90% magnesium, 6% aluminum and 3% zinc. The second is 99% pure magnesium which is better suited to dry or resistant soil conditions or where the steel work is poorly coated with other corrosion barriers. The magnesium anode is most commonly used to protect propane tanks, ship hulls, submarine pipelines, piers, and heat exchangers.
Features:
1. Lower specific gravity and negative potential.
2. High driving voltage to the iron and lower current efficiency.
3. Large generating capacity per unit and long service life.
Standard:
GB/T 17731-2004