High-Quality Magnesium Anode from China Suppliers and Factory for Effective Cathodic Protection
Advantage
The most common metals used in the manufacture anodes include zinc, aluminium and magnesium.
The magnesium anode is characterized by small density, big theory electric capacity, low potential negative polarization rate and large driving voltage for iron and steel.
Our High Potential Magnesium Anodes and Standard Magnesium Anodes can meet your different requirements.
Application
Magnesium anodes are effective and affordable for Anti-corrosion of buried pipeline buried pipeline, onshore platform, huge boiler and steel structures in salt and fresh water, Including:
• Hulls of ships and various other boats;
• Water storage tanks;
• Piers, docks, and wharfs;
• Pipelines;
• Heat exchangers, etc.
• Hulls of ships and various other boats;
• Water storage tanks;
• Piers, docks, and wharfs;
• Pipelines;
• Heat exchangers, etc.
Corroco is the approval Mg anode manufacturer of ARAMCO, its Pure Mg anode, Mg-Mn anode, Mg-Al-Zn anode are widely used in pipeline, tank protection of the world.
Chemical Compositions of Cast Magnesium Anodes
| Element | Anode Type | |||||
|---|---|---|---|---|---|---|
| High Potential | AZ63B(HIA) | AZ63C(HIB) | AZ63D(HIC) | AZ31 | ||
| Mg | Bal | Bal | Bal | Bal | Bal | |
| Al | <0.01 | 5.30-6.70 | 5.30-6.70 | 5.0-7.0 | 2.70-3.50 | |
| Zn | - | 2.50-3.50 | 2.50-3.50 | 2.0-4.0 | 0.70-1.70 | |
| Mn | 0.50-1.30 | 0.15-0.70 | 0.15-0.70 | 0.15-0.70 | 0.15-0.60 | |
| Si(max) | 0.05 | 0.10 | 0.30 | 0.30 | 0.05 | |
| Cu(max) | 0.02 | 0.02 | 0.05 | 0.10 | 0.01 | |
| Ni(max) | 0.001 | 0.002 | 0.003 | 0.003 | 0.003 | |
| Fe(max) | 0.03 | 0.005 | 0.005 | 0.005 | 0.005 | |
| Other Imp.(max) | Each | 0.05 | - | - | - | - |
| Total | 0.30 | 0.30 | 0.30 | 0.30 | 0.30 | |
| TYPE | Open Voltage (-V,SCE) | Close Voltage (-V,SCE) | Actual Capacity (A.h/LB) | Efficiency % |
|---|---|---|---|---|
| High Potential | 1.70-1.78 | 1.50-1.60 | >500 | >50 |
| AZ63 | 1.50-1.55 | 1.45-1.50 | >550 | >55 |
| AZ31 | 1.50-1.55 | 1.45-1.50 | >550 | >55 |
Parameter Data
| Visual Type | Type | Weight Kg(ib) | A (mm/inch) | B (mm/inch) | C (mm/inch) |
|---|---|---|---|---|---|
 |
9D2 | 4.082(9) | 69.9(2 3/4) | 549.3(21 5/8) | 76.2(3) |
| 14D2 | 6.350(14) | 69.9(2 3/4) | 850.9(33 1/2) | 76.2(3) | |
| 20D2 | 9.072(20) | 69.9(2 3/4) | 1212.9(47 3/4) | 76.2(3) | |
| 9D3 | 4.082(9) | 88.9(3 1/2) | 352.4(13 7/8) | 95.3(3 3/4) | |
| 17D3 | 7.711(17) | 88.9(3 1/2) | 641.4(25 1/4) | 95.3(3 3/4) | |
| 32D5 | 14.515(32) | 139.7(5 1/2) | 504.8(19 7/8) | 146.1(5 3/4) | |
| 48D5 | 21.772(48) | 139.7(5 1/2) | 765.2(30 1/8) | 146.1(5 3/4) | |
| 60D4 | 27.216(60) | 114.3(4 1/2) | 114.3(4 1/2) | 1460.5(57 1/2) |
| Visual Type | Type | Diameter (mm) | Length High potential (mm) | Length AZ63 (mm) | Weight (Kg) |
|---|---|---|---|---|---|
 |
C25 | 75 | 336 | 325 | 2.56 |
| C36 | 114 | 202 | 193 | 3.7 | |
| C41 | 114 | 230 | 220 | 4.2 | |
| C77 | 114 | 431 | 412 | 7.8 | |
| C100 | 114 | 560 | 536 | 10.2 | |
| C145 | 146 | 494 | 472 | 14.7 | |
| C227 | 178 | 520 | 497 | 22.9 | |
| C274 | 114 | 1528 | 1462 | 28.2 |
Prepackaged Mg anode
Corroco can also supply prepackaged Mg anode and cable connection special for our clients.
Standard backfill: Gypsum 75% | Bentonite 20% | Sodium Sulphate 5%.
Product Gallery
Bare Magnesium Anode:
Frequently Asked Questions
1. What are the primary advantages of using magnesium anodes?
Magnesium anodes offer high driving voltage, large theoretical electrical capacity, and low density, making them highly efficient for cathodic protection of steel structures.
2. Where are magnesium anodes typically applied?
They are widely used for buried pipelines, onshore platforms, huge boilers, ship hulls, water storage tanks, and various steel structures in both salt and fresh water environments.
3. What is the difference between High Potential and Standard Magnesium Anodes?
High potential anodes offer a higher open-circuit voltage (1.70-1.78V) compared to standard AZ63 anodes, providing more "driving force" for protection in high-resistivity soils.
4. What is included in the standard backfill for prepackaged anodes?
The standard backfill consists of 75% Gypsum, 20% Bentonite, and 5% Sodium Sulphate to ensure consistent moisture and low resistance.
5. Is Corroco an approved manufacturer?
Yes, Corroco is an approved magnesium anode manufacturer for ARAMCO, and its products are used globally for major pipeline and tank protection projects.
6. Can magnesium anodes be customized for specific cable connections?
Yes, we supply prepackaged magnesium anodes with specialized cable connections tailored to meet specific client and project requirements.