Magnesium Hull Tank Anodes
Magnesium hull anodes are commonly used to protect submerged steel structures in fresh, brackish water or seawater.
Magnesium hull anodes are normally cast in different shapes and sizes with H-1 alloy.
HP Mag alloy anodes in other configurations to those outlined are available upon request.
|
Element |
Grade ASTM B843 -AZ63 or equivalent |
|
Standard Potential (H-1B, 1.5V) |
|
|
Aluminum |
5.3 ~ 6.7% |
|
Zinc |
2.5 ~ 3.5% |
|
Manganese |
0.15 ~ 0.70% |
|
Silicon |
0.30% |
|
Copper |
0.05% |
|
Nickel |
0.003% |
|
Iron |
0.003% |
|
Other Each |
/ |
|
Others Total |
0.30% |
|
Magnesium |
Remainder |
|
Alloy Standard |
Open Circuit Potential (-V) |
Close Circuit Potential(-V) |
Current Capacity |
Current Efficiency |
|
Grade ASTM B843 - AZ63C |
1.50 ~ 1.55 |
1.45 ~ 1.50 |
550A.h/lbs (1230A.h/kg) |
55% |
|
Anode Model |
Anode Weight |
Anode Size (L × W × H) |
Steel Core Size (Hc × Wc) |
Steel Core Type |
|
JA - MG - H22 |
22lbs (10kg) |
20" × 10" × 2" (508 × 254 × 51mm) |
1/4" × 11/2" (6.35 × 38mm) |
3/4”-10 UNC STUD |
|
JA - MG - H24 |
24lbs (11kg) |
18" × 9" × 2" (457 × 229 × 51mm) |
1/4" × 2" (6.35 × 51mm) |
3/4”-10 UNC STUD |
|
JA - MG - H44 |
44lbs (20kg) |
18" × 9" × 2" (457 × 229 × 51mm) |
1/4" × 2" (6.35 × 51mm) |
Two Cast-in Galvanized Steel Straps |
|
Anode Model |
Anode Weight |
Anode Size (L × W) |
Steel Core Size |
Steel Core Type |
|
JA - MG - 5L |
5lbs (2.3kg) |
10" × 5" (254 × 127mm) |
131/4" × 1/4" (337 × 6.35mm) |
Cast-in Galvanized Steel Strap with Mounting Holes |
|
JA - MG - 10L |
10lbs (4.6kg) |
15" × 6" (381 × 153mm) |
15" × 11/4" (381 × 31.75mm) |
|
Anode Model |
Anode Weight |
Anode Size (L × W× H) |
Steel Core Size (Hc × Wc) |
Steel Core Type |
|
JA - MG - T36 |
36lbs (16.3kg) |
28" × 4" × 4" (711 × 102 × 102mm) |
3/8" × 1-1/2" (9.5 × 38mm) |
Longitudinal, galvanized steel core with Mounting Holes |
|
JA - MG - T53 |
53lbs (24kg) |
16" × 7" × 7" (407 × 178 × 178mm) |
3/8" × 1-1/2" (9.5 × 38mm) |
|
|
JA - MG - T57 |
57lbs (26kg) |
16" × 7" × 7" (407 × 178 × 178mm) |
3/8" × 1-3/4" (9.5 × 46mm) |
|
|
JA - MG - D60 |
60lbs (27.2kg) |
30" × 6" × 6" (762 × 153 × 153mm) |
3/8" × 2" (9.5 × 51mm) |
|
Anode Model |
Anode Weight |
Anode Size (L × W× H) |
Steel Core Type |
|
JA - MG - P50C |
50lbs (22.5kg) |
Dia. 8"×16" (203 × 406mm) |
Pipe or Eyelet or custom per request |
|
JA - MG - P100C |
100lbs (45.5kg) |
Dia. 8"×32" (203 × 813mm) |
|
|
JA - MG - P200C |
200lbs (90.8kg) |
Dia. 12"×27" (305 × 686mm) |
Other configurations are available on request.
Plastisol coating, an excellent insulator can be applied to the sides or bottom of the anode as an additional option to prevent surface contact contamination thereby preventing any current barrier.
Anodes have cast-in mounting straps for a welded or bolted installation.
All weights and dimensions are nominal and subject to variation in material compositions and Jennings Anodes foundry tolerance.
|
Testing |
Chemical Composition |
Electrochemical Properties |
Physical Appearance |
|
Standards & Methods |
ISO 9001:2015 Quality Management System and Foundry Internal Standards of Magnesium Anodes |
||
|
ASTM B843 |
ASTM G97 |
Foundry ITP |
|
|
Items |
Chemical Analysis |
Circuit Potential Current Capacity Current Efficiency |
Surface, Size, Weight, (oxide slag, shrinkage, crack), Steel Core, Resistance etc. |
|
Equipment & Devices |
Optical Emission Spectrometer OBLF QSN 750 |
Electrochemical Analyzer EPI 200, Reference Electrode |
Calibrated Digital Measuring Devices |
Magnesium Hull Anodes have a high driving voltage and can be rapidly polarized to protect metal structures efficiently.
