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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)