Magnesium Hull Anodes
Magnesium Anodes are available as either bare or plastisol coated. Alloy is typically H-1, Grade A (AZ-63).
Magnesium Anodes have a more negative potential than Aluminum Anodes or Zinc Anodes and is more suitable for areas where the electrolyte (soil or water) resistivity is higher. Magnesium Anodes are generally used on vessels in fresh water environments and in water heaters / boilers. In some cases, the higher negative potential of magnesium can be a disadvantage. If the potential of the protected metal becomes too negative, hydrogen may be released from the cathode surface which may lead to acellerated corrosion.
See our technical page for specs.
| MAG PART | PLASTISOL COATING | DIMENSIONS (INCHES) | CORE(S) (INCHES) | LBS |
| ML-2 | bare or coated | 2 x 3 x 8.5 | .125 x .75 x 11.75 | 2 |
| ML-5 | bare or coated | 2.5 x 5 x 10 | .18 x 1.25 x 14.25 | 5 |
| ML-10 | bare or coated | 3 x 6 x 12 | .18 x 1.25 x 17 | 10 |
| MHN-3 | bare | .5 X 6 X 12 | - | 3 |
| MH-22 | bare or coated | 2 x 10 x 20 | .25 x 1.5 x 18 | 22 |
| MH-24W | bare or coated | 2 x 9 x 18 | .25 x 2 x 16.75 | 24 |
| MH-44W | bare or coated | 4 x 9 x 18 | .25 x 2 x 16.75 | 44 |
| MC-7.5 | bare | 2 x 8 x 8 | 3/4 IPS | 7.5 |
| MC-15 | bare | 4 x 8 x 8 | 3/4 IPS | 15 |
| M2R-5 | bare | 5" dia x 2 thick | 1/2 IPS pipe | 2 |
| MSS-3 | bare | 1.25 x 3 x 12 | .18 x 1.25 x 16 | 3 |
ML-2
ML-5
ML-10
MHN-3
MH-22
MH-24W
MH-44W
MC7.5
MC-15
M-2R5
MSS-3
Magnesium Rod Anodes
Extruded Magnesium Rod Anode applications include boilers, hot water heaters, pools, dams and other freshwater systems. Magnesium rod has an internal steel core. Segmented anodes are available for “tight fit” installations.
| MAG DIA | CORE DIA | CORE CENTERING | NOMINAL LBS/FOOT |
| 0.5 | 0.13 | within .04 | 0.18 |
| 0.67 | 0.13 | within .05 | 0.3 |
| 0.75 | 0.13 | within .06 | 0.37 |
| 0.84 | 0.13 | within .06 | 0.46 |
| 1.05 | 0.13 | within .06 | 0.68 |
| 1.31 | 0.13 | within .06 | 1.07 |
| 1.56 | 0.18 | within .06 | 1.5 |
| 2.02 | 0.18 | within .125 | 2.5 |
MAGNESIUM PENCIL ANODE
SEGMENTED PENCIL ANODE
MAGNESIUM ROD
Available in: Saw Cut Ends – Machine Threaded Ends – Segmented – Exposed Cores
Magnesium Backfill Anodes
Magnesium Backfill anodes typically have 10′ of No. 12 insulated wire and are packaged in the backfill mixture of: 75% Hydrated Gypsum, 20% Bentonite, 5% Sodium Sulfate
| ANODE SIZE | BARE LBS | PACK LBS | ANODE WIDTH | ANODE HEIGHT | ANODE LENGTH | PACKAGE DIA | PACKAGE LENGTH |
| MB-3-H-1 | 3 | 8 | 3 | 3 | 5 | 5.25 | 8 |
| MB-5-H-1 | 5 | 13 | 3 | 3 | 8 | 5.25 | 11.25 |
| MB-9-H-1 | 9 | 27 | 3 | 3 | 14 | 5.25 | 20 |
| MB-12-H-1 | 12 | 32 | 4 | 4 | 12 | 7.5 | 18 |
| MB-17-H-1 | 17 | 45 | 4 | 4 | 17 | 7.5 | 24 |
| MB-32-H-1 | 32 | 68 | 5 | 5 | 20.5 | 8.6 | 28 |
| MB-5-HP | 5 | 17 | 3.5 | 3.5 | 8.5 | 6 | 12 |
| MB-9-HP | 9 | 27 | 3.5 | 3.5 | 14 | 6 | 17 |
| MB-14-HP | 14 | 31 | 2.75 | 2.75 | 41 | 6 | 46 |
| MB-17-HP | 17 | 45 | 3.5 | 3.5 | 25.75 | 7.5 | 34 |
| MB-32-HP | 32 | 70 | 5.5 | 5.5 | 20.5 | 8 | 28 |
BACKFILL ANODE
