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Magnesium anode is a common sacrificial anode material used in electrochemical cathodic protection engineering. This galvanic anode is connected to steel structures to prevent or slow down rusting. This magnesium sacrificial anode has high chemical activity, its electrode potential is rather negative, and the driving voltage is quite high. Besides, magnesium anode is difficult to form effective protective film on the magnesium surface. In water medium, the protective film is easy to dissolve, and the magnesium self-corrosion is quite strong. Our magnesium sacrificial anode includes pure magnesium, Mg-Mn series alloy and Mg-Al-Zn-Mn series alloy.
Prepackaged Magnesium Anode:
Standard backfill:Gypsum 75% Bentonite 20% Sodium Sulphate 5%.
Magnesium anode is characterized by small density, big theory electric capacity, low potential negative polarization rate and large driving voltage for iron and steel (> 0.6 V).
Magnesium sacrificial anode is suitable for the protection of metal components in soil and water, where the electrical resistivity is higher.
Our magnesium anode is mainly used for anticorrosion of buried pipelines, onshore platforms, huge boilers and steel structures.
Production standard:
ASTM G-97
Chemical compositions of cast magnesium anode (%) | ||||
Element | High potential | AZ63B | AZ63C | AZ63D |
Al | <0.01 | 5.30-6.70 | 5.30-6.70 | 5.0-7.0 |
Zn | --- | 2.50-3.50 | 2.50-3.50 | 2.0-4.0 |
Mn | 0.5-1.30 | 0.15-0.70 | 0.15-0.07 | 0.15-0.70 |
Si (max) | 0.05 | 0.10 | 0.30 | 0.30 |
Cu (max) | 0.02 | 0.02 | 0.05 | 0.10 |
Ni (max) | 0.001 | 0.002 | 0.003 | 0.003 |
Fe (max) | 0.03 | 0.005 | 0.005 | 0.005 |
Others each | 0.05 | --- | -- | --- |
Others total | 0.30 | 0.30 | 0.30 | 0.30 |
Mg | Balance | Balance | Balance | Balance |
Electrochemical Properties of cast magnesium anodes | ||||
Item | Open-circuit Voltage | Close-circuit Voltage | Actual capacitance | Current efficiency |
| (-V) | (-V) | (A.h/g) | (%) |
High Potential | 1.70-1.75 | 1.57-1.62 | ≥ 1.100 | ≥ 50 |
Low Potential (AZ63) | 1.50-1.55 | 1.45-1.50 | ≥ 1.105 | ≥ 50 |
Note: Open and Close-circuit voltage is relative to Saturated Calomel Electrode (SCE) |
Our company is named of China Hunan High Broad, it was established in year 2006. We devote ourselves to researching, developing, producing and selling of New Materials. The sales office is located in Changsha ,China. The manufacturing base is located in Henan and Shanxi province, which with over 5000mt annual capacity of Magnesium base master alloy, Magnesium anodes, Aluminum anodes, Zinc anodes, Aluminum base master alloy, Rare earth master alloy, Zinc base master alloy, magnesium alloy billet,advanced Industrial Ceramics, and other new materials, which are widely applied in high-tech field such as aerospace, machine manufacturing, electrommunication ,etc. Our products are accepted and recognized by clients worldwide including Europe, America, East Asia etc..
Our technical team have leading design and R&D ability, we can supply high quality & stable products, and also provide the technical solution during your producing and processing.
We took a part in many R&D projects in colleges and universities, and started strategic cooperation with many companies in China and overseas.
Believe we are the top choose to become your best partner.
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