Bare Magnesium Anode
Feature:
1. High current efficiency
2. Uniform consumption
3. High potential
4. High current capacity
Description
Having the highest driving voltage (most negative electropotential) of all the materials used for sacrificial anodes, magnesium anode is an economical and effective sacrificial anode used primarily in soil with medium to high resistivity (1,000 – 10,000 Ω·cm).
By creating an easier and more attractive source of oxidation, magnesium anodes prevent or slow down the rusting of steel structures that they are connected to. Our bare magnesium anodes are widely used for cathodic protection of buried pipelines, underground tanks, external tank bottom, etc.
Our magnesium anode is casted from high-purity magnesium ingot and advanced technology. There are two alloy types with different electro-potential
as below:Standard Potential
1. Standard Potential (H-1)
Standard potential anode is manufactured in accordance with ASTM B843-AZ63B standard, containing 90% magnesium, 6% aluminum and 3% zinc. The
zinc and aluminum elements lower the cost of the anode, but they also lower the driving potential to about -1.55 volts w.r.t. Cu/CuSO4 reference electrode. It is ideal for soil conditions where resistivity is under 20 Ω.m.
2. High Potential (HP)
High potential anode is manufactured from 99% pure magnesium, according to ASTM B843-M1C standard.
Its open circuit potential is as high as -1.7 volts, which is 20~30% greater than standard potential anodes. The high driving voltage means greater protection can be delivered from fewer anodes. Therefore, it is capable to be used in dry or sandy areas where resistivities exceeding 2,000 Ω·cm, or for structures containing numerous corrosion hot-spots.
By creating an easier and more attractive source of oxidation, magnesium anodes prevent or slow down the rusting of steel structures that they are connected to. Our bare magnesium anodes are widely used for cathodic protection of buried pipelines, underground tanks, external tank bottom, etc.
Our magnesium anode is casted from high-purity magnesium ingot and advanced technology. There are two alloy types with different electro-potential
as below:Standard Potential
1. Standard Potential (H-1)
Standard potential anode is manufactured in accordance with ASTM B843-AZ63B standard, containing 90% magnesium, 6% aluminum and 3% zinc. The
zinc and aluminum elements lower the cost of the anode, but they also lower the driving potential to about -1.55 volts w.r.t. Cu/CuSO4 reference electrode. It is ideal for soil conditions where resistivity is under 20 Ω.m.
2. High Potential (HP)
High potential anode is manufactured from 99% pure magnesium, according to ASTM B843-M1C standard.
Its open circuit potential is as high as -1.7 volts, which is 20~30% greater than standard potential anodes. The high driving voltage means greater protection can be delivered from fewer anodes. Therefore, it is capable to be used in dry or sandy areas where resistivities exceeding 2,000 Ω·cm, or for structures containing numerous corrosion hot-spots.
