Bare Magnesium Anodes
Magnesium has a high driving potential and is low on the noble scale which makes it a highly effective and economical solution for CP.
Magnesium bare anode is usually made into two types with different electro-potential (relative to Cu/CuSO4 reference electrode):
1. High Potential (HP) magnesium anode (-1.70V)
2. Standard Potential (H-1) magnesium anode (-1.50V)
|
Grade ASTM B843 - M1C |
Grade ASTM B843 - AZ63B |
|
|
High Potential (HP, 1.75V) |
Standard Potential (H-1, 1.55V) |
|
|
Aluminum |
0.01% |
5.3 ~ 6.7% |
|
Zinc |
/ |
2.5 ~ 3.5% |
|
Manganese |
0.50 ~ 1.30% |
0.15 ~ 0.70% |
|
Silicon |
0.05% |
0.10% |
|
Copper |
0.02% |
0.02% |
|
Nickel |
0.001% |
0.002% |
|
Iron |
0.03% |
0.003% |
|
Other Each |
0.05% |
/ |
|
Others Total |
0.30% |
0.30% |
|
Magnesium |
Remainder |
Remainder |
Magnesium anodes are used predominately onshore in relatively high resistivity soil and water.
High potential magnesium anodes have a high open circuit voltage and high driving potential than standard potential magnesium anodes. This yields more current output and achieves a greater efficiency in reaching a cathodic protection level with a lower consumption of the anodes. High potential magnesium anodes (HP alloys) are recommended to be installed in relatively high resistivity soil. Standard potential magnesium anodes (H-1 alloys) are ideal for average soil conditions where resistivity is under 20 Ω.m.
|
Anode Model |
ASTM B843 – M1C |
ASTM B843 – AZ63B |
|
Open Circuit Potential (-V) |
1.70 ~ 1.75 |
1.50 ~ 1.55 |
|
Close Circuit Potential (-V) |
1.58 ~ 1.62 |
1.45 ~ 1.50 |
|
Current Capacity |
500A.h/lbs (1100A.h/kg) |
500A.h/lbs (1230A.h/kg) |
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Current Efficiency |
50% |
55% |
|
Note |
Open / Close Circuit Potential is with respect to a Saturated Calomel Reference Electrod |
|
Open/close circuit potential is with respect to a Saturated Calomel Reference Electrode.
D Typle
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Anode Model |
Anode Weight |
High Potential (HP, 1.75V) |
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|
Length |
Width |
Height |
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JA - MG - 5D2 |
5lbs (2.3kg) |
7.5" (190mm) |
3.5" (89mm) |
3.7" (95mm) |
|
JA - MG - 9D3 |
9lbs (4.1kg) |
13.6" (345mm) |
3.5" (89mm) |
3.7" (95mm) |
|
JA - MG - 17D3 |
17lbs (7.7kg) |
47.6" (1210mm) |
2.5" (63.5mm) |
2.6" (67mm) |
|
JA - MG - 20D2 |
20lbs (9.1kg) |
60.0" (1250mm) |
2.75" (70mm) |
3.0" (76mm) |
|
JA - MG - 32D5 |
32lbs (14.5kg) |
19.6" (498mm) |
5.5" (140mm) |
5.7" (146mm) |
|
JA - MG - 48D5 |
48lbs (21.8kg) |
29.5" (750mm) |
5.5" (140mm) |
5.7" (146mm) |
|
JA - MG - 60D4 |
60lbs (27.3kg) |
60.0" (1524mm) |
4.4" (112mm) |
4.4" (112mm) |
S Typle
Anode Model
Anode Weight
High Potential (HP, 1.75V)
Length
Width
Height
JA
- MG - 17S3
17lbs
(7.7kg)
26.8"
(680mm)
3.4"
(86.25mm)
3.0"
(76mm)
JA
- MG - 32S5
32lbs
(14.5kg)
22.2"
(563mm)
4.6"
(117mm)
5.0"
(127mm)
JA
- MG - 48S5
48lbs
(21.8kg)
33.3"
(845mm)
4.6"
(117mm)
5.0"
(127mm)
JA
- MG - 60S4
60lbs
(27.3kg)
59.8"
(1520mm)
4.0"
(102mm)
4.0"
(102mm)
R Typle
|
Anode Model |
Anode Weight |
High Potential (HP, 1.75V) |
|
|
Diameter |
Length |
||
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JA - MG - 1R8 |
1lbs (0.45kg) |
1.65” (42mm) |
8.3” (210mm) |
|
JA - MG - 17R |
17lbs (7.7kg) |
4.5” (114mm) |
17.3” (440mm) |
|
JA - MG - 32R |
32lbs (14.5kg) |
5.75” (146mm) |
19.7” (505mm) |
|
JA - MG - 50R |
50lbs (22.7kg) |
7.0” (178mm) |
19.9” (505mm) |
|
JA - MG - 60R |
60lbs (27.3kg) |
4.5” (114mm) |
60.0” (1524mm) |
We employ rigorous internal and industry testing standards to ensure optimum quality and superior performance and lifespan of our magnesium anodes. Third party testing is available upon request.
Each anode is stamped or labelled with a unique serial number for quality tracking and ensuring full product traceability.
|
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 Efficiency |
Surface Finish , Size, Weight, Steel Core, Resistance etc. |
|
Equipment & Devices |
Optical Emission Spectrometer OBLF QSN 750 |
Electrochemical Analyzer EPI 200, Reference Electrode |
Calibrated Digital Measuring Devices |
We have strict packing protocols to guarantee safe delivery of our products. Clear shipping marks and documentation make delivery acceptance straightforward and simple.
Custom packing is available upon request.
Shipping Documents:
1. Proforma invoice
2. Packing list
3. Testing reports (Chemical Composition, Electrochemical Properties Test, Certificate of Compliance)
4. Others upon request (e.g. Certificate of Origin)
|
Anode Model |
Packing Details |
|||||
|
Unit |
No./Pallet |
Coil Dimension |
Pallet/ container |
Net Weight |
Gross Weight |
|
|
JA - MG - 5D3 |
EA |
270 |
40"×40"×27" (1020×1020×690mm) |
33 |
1370lbs (622kg) |
1410lbs (635kg) |
|
JA - MG - 9D3 |
270 |
41.5"×41.5"×32" (1050×1050×810mm) |
19 |
2440lbs (1108kg) |
2478lbs (1125kg) |
|
|
JA - MG - 17D3 |
144 |
41.5"×41.5"×32" (1050×1050×810mm) |
18 |
2478lbs (1108kg) |
2522lbs (1125kg) |
|
|
JA - MG - 20D2 |
120 |
57"×32.5"×32" (1450×810×800mm) |
19 |
2406lbs (1092kg) |
2456lbs (1110kg) |
|
|
JA - MG - 32D5 |
80 |
41.5"×41.5"×33.5" (1050×1050×860mm) |
18 |
2560lbs (1160kg) |
2600lbs (1180kg) |
|
|
JA - MG - 40D3 |
60 |
58"×35.5"×26.5" (1470×910×680mm) |
19 |
2406lbs (1092kg) |
2456lbs (1115kg) |
|
|
JA - MG - 48D5 |
50 |
41.5"×41.5"×34" (1050×1050×870mm) |
19 |
2405lbs (1090kg) |
2450lbs (1112kg) |
|
|
JA - MG - 50R8 |
50 |
43"×35"×42.5" (1100×900×1080mm) |
18 |
2500lbs (1135kg) |
2545lbs (1155kg) |
|
|
JA - MG - 60S4 |
40 |
61.5"×40"×25.5" (1560×1020×650mm) |
19 |
2405lbs (1092kg) |
2460lbs (1116kg) |
|
|
JA - MG - 60D4 |
40 |
60.5"×32.5"×28.5" (1540×810×710mm) |
19 |
2405lbs (1092kg) |
2460lbs (1116kg) |
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