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  Position : Index>> Products >>Standard Potential Magnesium Anodes  
   
 

      In average soil conditions, H-1 alloy, commonly known as standard potential magnesium, is an excellent choice in cathodic protection systems. Typically, CorrTech H-1 anodes produce a minimum open circuit potential of 1.52 volts with respect to Cu-CuSO4. Therefore, the driving potential of the H-1 cathodic protection anodes exceeds that of aluminum or zinc, but is still lower than a high potential magnesium anode.

 

Chemical composition%

Alloy

Al

Zn

Mn

Si (max)

Cu (max)

Ni (max)

Fe (max)

Total of Impurities

 (max)

AZ63B

5.30-6.70

2.50-3.50

0.15-0.60

0.08

0.01

0.001

0.003

0.30

AZ31D

2.5-3.5

0.6-1.4

0.2-1.0

0.08

0.01

0.001

0.002

0.30

AZ63C

5.30-6.70

2.50-3.50

0.15-0.70

0.30

0.05

0.003

0.003

0.30

 

Electrochemical properties

 

Open voltage(-V)

Closed voltage(-V)

Actual capacity(A.h/kg)

Efficiency (%)

1.50-1.55

1.45-1.50

1,230 min

55 min

 

 

 
       
 
       
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