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Cast Magnesium Anodes
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Cast magnesium anodes are available in standard potential
alloy and high potential alloy. The products are made
from high quality magnesium ingots and are suitable
for a wide range of cathodic protection applications.
Electrochemical properties of Cast Magnesium Anodes
| | Open-Circuit Voltage
(-V respect to *SCE) | Close-Circuit Voltage
(-V respect to *SCE) | Actual Capacitance
(A ×h /lb) | Current
Efficiency (%) |
| High Potential | 1.7-1.75 | 1.57-1.62 | >500 | >50 |
| AZ63 | 1.5-1.55 | 1.45-1.5 | >550 | >55 |
| AZ31 | 1.55 | 1.45-1.5 | >550 | >55 |
(*SCE: Saturated Calomel Electrode)
Chemical composition of Cast Magnesium Anodes
| Element | High Potential | AZ63B(HIA) | AZ63C(HIB) | AZ63D(HIC) |
| Mg | Remainder | Remainder | Remainder | Remainder |
| Al | <0.01 | 5.3-6.71 | 5.3-6.7 | 5.0-7.0 |
| Zn | - | 2.5-3.5 | 2.5-3.5 | 2.0-4.0 |
| Mn0.5-1.3 | 0.15-0.7 | 0.15-0.7 | 0.15-0.7 | 0.15-0.7 |
| Si (max) | 0.05 | 0.15 | 0.3 | 0.3 |
| Cu (max) | 0.02 | 0.02 | 0.05 | 0.1 |
| Ni (max) | 0.001 | 0.002 | 0.003 | 0.003 |
| Fe (max) | 0.03 | 0.003 | 0.003 | 0.003 |
Other Imp. Each
(max) Total | 0.05 | - | - | - |
| 0.3 | 0.3 | 0.3 | 0.3 |
A wide variety of anodes are available to meet the
customer's specification
Cast Magnesium Anodes are normally manufactured in
the following standard size weight and shape but anodes
can also be furnished according to the customer's special
order. 
Size and weight specifications of cast anodes
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