Cast Magnesium Sacrificial Anode
Howah Casting Magnesium Anodes
Chemical Composition: M1C (High Potential) AZ63B (Standard or Low Potential)
Specification: 9D3 17D3 32D5
Description
Product description:
Howah Casting Magnesium Anodes are manufactured in a variety of shapes and sizes for use in seawater, steam water, and freshwater cathodic protection systems.
Our experience in manufacturing magnesium anodes ensures you receive high-quality anodes that effectively control corrosion when used in a cathodic protection system designed with proper maintenance.
Application of Cast Magnesium Sacrificial Anode
1. Hulls of ships and various other boats
2. Water storage tanks
3. Piers, docks, and wharfs
4. Pipelines
5. Heat exchangers
6. Travelling screens
Technical Parameter
Chemical Composition
Element | Grade ASTM B843 – M1C | Grade ASTM B843 – AZ63B |
High Potential (HP 1.7V) | Standard Potential (H-1 1.5V) | |
Aluminum | 0.01% Max. | 5.3 – 6.7% |
Zinc | — | 2.5 – 3.5% |
Manganese | 0.50 – 1.30% | 0.15 – 0.70% |
Silicon | 0.05% Max. | 0.10% Max. |
Copper | 0.02% Max. | 0.02% Max. |
Nickel | 0.001% Max. | 0.002% Max. |
Iron | 0.03% Max. | 0.003% Max. |
Other Each | 0.05% Max. | — |
Others Total | 0.30% Max. | 0.30% Max. |
Magnesium | Remainder | Remainder |
Electrochemical Performance
Alloy Standard | Open Circuit
Potential (-V) |
Close Circuit
Potential (-V) |
Current
Capacity (Min.) |
Current
Efficiency |
ASTM B843 – M1C | 1.70 – 1.75 | 1.58 – 1.62 | 500A.h/lbs
(1100A.h/kg) |
50% Min. |
ASTM B843 – AZ63B | 1.50 – 1.55 | 1.45 – 1.50 | 550A.h/lbs
(1230A.h/kg) |
55% Min. |
Standard Specification
Anode Model | Anode Weight | Length | Width | Height |
9D3 | 9lbs
(4.1kg) |
13.6″
(345mm) |
3.5″
(89mm) |
3.7″
(95mm) |
17D3 | 17lbs
(7.7kg) |
25.25″
(645mm) |
3.5″
(89mm) |
3.7″
(95mm) |
32D5 | 32lbs
(14.5kg) |
19.6″
(498mm) |
5.5″
(140mm) |
5.7″
(146mm) |
Anode Model | Anode Weight | Length | Width | Height |
9S3 | 9lbs
(4.1kg) |
13.6″
(345mm) |
3.4″
(86.25mm) |
3.0″
(76mm) |
17S3 | 17lbs
(7.7kg) |
26.8”
(680mm) |
3.4”
(86.25mm) |
3.0”
(76mm) |
32S5 | 32lbs
(14.5kg) |
22.2”
(563mm) |
4.6”
(117mm) |
5.0”
(127mm) |
Anode Model | Anode Weight | Diameter | Length |
1C8 | 9lbs
(4.1kg) |
4.5”
(114mm) |
9.0”
(230mm) |
17C | 17lbs
(7.7kg) |
4.5”
(114mm) |
17.3”
(440mm) |
32C | 32lbs
(14.5kg) |
5.75”
(146mm) |
19.7”
(505mm) |