Magnesium Anode (Circular Shape)
Having the highest driving voltage (most negative electro-potential) 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. YUXI’s bare magnesium anodes are widely used for cathodic protection of buried pipelines, underground tanks, external tank bottom, etc.
Description
—— Chemical Composition ——
YUXI’s magnesium anode is casted from high-purity magnesium ingot and advanced technology. There are two alloy types with different electro-potential as below:
High potential anode is manufactured from 99% pure magnesium, according to ASTM B843-M1C standard.
Standard potential anode is manufactured in accordance with ASTM B843-AZ63B standard.
—— Electrochemical Properties ——
YUXI casts magnesium anodes strictly conform to ASTM stardards to make sure the current efficiency exceed 50%.
◉ High Potential
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.
◉ Standard Potential
The zinc and aluminum elements lower the cost of the anode, but they also lower the driving potential. It is ideal for soil conditions where resistivity is under 20 Ω.m.
* The open/closed circuit voltage is with respect to a saturated calomel electrode.
—— Practical Application ——
Magnesium anodes are economical solutions that can be used for land application, especially for buried structures with high resistivity of environment. They are generally applied in the sacrificial anode cathodic protection (SACP) system of onshore pipelines, underground storage tanks (USTs), external bottom of aboveground tanks, etc. Bare magnesium anode is usually comes in copper cable with certain type of insulation and prepacked in a linen bag containing a rapid wetting, moisture-retaining backfill, which reduces the electrolyte resistively adjacent to the anode for improved performance.
Parameters
| Category | Soil Anode |
|---|---|
| Substrate | Magnesium Alloy |
| Shape | Cylindrical |
| Applicable Environment | Sand, Soil |
| Application | Aboveground Tank, Electricity Pylon, Pipeline, Underground Tank |
| Certification | ABS |
Specification
Specification
Note: All dimensions and weights shown above are nominal. The information provided is subject to change without notice.
