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Cast Magnesium Anodes


    Cast Magnesium Anodes are widely used in the Cathodic Protection(CP) industry. Cathodic Protection is one of the most common methods of corrosion mitigation in the pipeline, storage tank and underground metallic structures.

    3N International, Inc. supplies various shapes and sizes of cast magnesium anodes. The most commonly used sizes are 9 lb, 17 lb and 32 lb.  We also take orders per customers drawings.

   

 

 

 

 

 

3N packaged magnesium anodes are packed in cotton bags with backfill consisting 75% gypsum, 20% bentonite and 5% sodium sulphate, and into plastic bags to prevent  moisture.  Connecting wire: Standard 10 feet of #12 AWG solid copper Lead TW wire.

    3N packaged magnesium anodes are ready to install.  This provides great convenience and cost savings for end users who have the ability and expertise to do the jobs by themselves, as well as for engineering contractors. 3N International maintains inventories of packaged magnesium anodes in multiple locations for prompt delivery to customers. 

   

 

 

 

 

 


Chemical Composition of Alloys (%)

Grade Mg Al Zn Mn Si(max) Cu(max) Ni(max) Fe(max) Other Impurites(max)
Each Total
High Potential Balance 0.01 max - 0.5-1.30 0.05 0.02 0.001 0.03 0.05 0.30
AZ63-A Balance 5.30-6.70 2.5-3.50 0.15-0.70 0.10 0.02 0.002 0.003 - 0.30

Electrochemical Properties

Grade Open-Circuit Voltge

(-v respect to Cu/CuSO4

Closed-Circuit Voltage

(-v respect to Cu/CuSO4)

Actual Capacity

(A.h/lb)

Current Efficiency

(%)

High Potential 1.70-1.80 1.50-1.75 ≥500 50
AZ63 1.50-1.60 1.45-1.55 ≥500 ≥50
AZ31 1.55-1.65 1.45-1.55 ≥500 ≥50

 

D Shape

D Shape Sizes

Type Weight

(lb)

Anodes (inch) Concave Base (inch) Steel

Core

A B C E G H I J K
5D3 5 3 1/2 3 3/4 8 1 1/2 1 7/8 7/8 1 1/2 3/4 4 3/4 Strip
9D2 9 2 3/4 3 27 1 1/8 1 7/8 7/8 1 3/4 25 3/4 Strip
17D2 17 2 3/4 3 41 7/8 1 1/8 1 7/8 7/8 1 3/4 40 1/2 Strip
20D2 20 2 3/4 3 59 3/4 1 1/8 1 7/8 7/8 1 3/4 57 3/4 Strip
9D3 9 3 1/3 3 3/4 13 7/8 1 1/2 1 7/8 7/8 1 1/2 3/4 10 1/2 Strip
17D3 17 3 1/3 3 3/4 25 1/4 1 1/2 1 7/8 7/8 1 1/2 3/4 21 1/2 Strip
32D5 32 5 1/2 5 3/4 19 7/8 2 7/16 1 7/8 7/8 1 1/2 3/4 16 1/2 Strip
48D5 48 5 1/2 5 3/4 30 1/8 2 7/16 1 7/8 7/8 1 1/2 3/4 28 1/2 Strip

 

S Shape Sizes

   S Shape
Type Dimension (inch) Weight

(lb)

B C A
3S3 3 3 4 1/2 3
5S3 3 3 7 1/2 5
9S2 2 2 27 9
9S3 3 3 13 1/2 9
17S2 2 2 60 17
17S3 3 3 25 1/2 17
20S2 2 2 60 20
32S3 3 3 45 32
32S5 5 5 21 32
40S3 3 3 60 40
48S5 5 5 31 48
60S4 4 4 60 60

           

C Shape Sizes

C Shape
Type Weight

(lbs)

Diameter

(inch)

Length

(inch)

Length

(inch)

Steel Core

Shape

HP H1
8C 7.9 4 1/2 8 7 5/8 Strip
9C 9 4 1/2 9 9 11/16 Strip
11C 11 41/2 11 10 9/16 Strip
17C 17 4 1/2 17 16 1/4 Strip
22C 22 4 1/2 22 21 1/8 Strip
32C 32 5 3/4 20 19 Strip
50C 50 7 20.5 19 5/8 Strip
60C 60 7 24.8 24  5/16 Strip

 


Click the links below to find more:

                Anodes

                Cast Magnesium Anodes

                Extruded Magnesium Anodes

                Cast Zinc Anodes

                Extruded Zinc Anodes

                Cast Aluminum Anodes

                High Silicon Cast Iron Anodes

                Mixed Metal Oxide Anodes


 

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Copyright 2004 3N International, Inc.
Last modified: 12/17/08