High Potential Pipeline Cathodic Protection System

Product Description
High Potential Cast Magnesium Anode / OEM AZ63C Cast Mg Anode for Cathodic
Protection
Cast Magnesium Anode

Product Introduction:


The corrosion of metal in salt or fresh water or in soil can be prevented by
the use of galvanic anodes in a cathodic protection system.

Magnesium anodes are used in such systems, most commonly to protect
underground gas, oil and water pipelines.

When the anode's cable is attached to a pipeline or other underground
structure, a galvanic cell is created in which electrons flow from the anode to
the structure, thereby protecting the structure.

The anode corrodes instead of the structure and must be replaced after a
certain period of time that depends on the type of structure that is being
protected, the size and grade of anodes that are used, and the corrosivity and
resistivity of the surrounding soil.

In addition to pipelines, magnesium anodes are often used to protect
propane, water and chemical storage tanks, areas of ships and port facilities
that are not in direct contact with sea water, power plants and irrigation
systems.


Specifications:


Standard : ASTM G-97



Chemical compositions of cast magnesium anode (%)

Element

High potential

AZ63B

AZ63C

AZ63D

Al

<0.01

5.30-6.70

5 , .30-6.70

5.0-7.0

Zn

---

2.50-3.50

2.50-3.50

2.0-4.0

Mn

0.5-1.30

0.15-0.70

0.15-0 , .07

0.15-0.70

Si (max)

0.05

0.10

0.30

0 , .30

Cu (max)

0.02

0.02

0.05

0 , .10

Ni (max)

0.001

0.002

0.003

0.003

Fe (max)

0.03

0.005

0.005

0.005

Others each

0.05

---

--

---

Others total

0.30

0.30

0.30

0 , .30

Mg

Balance

Balance

Balance

Balance



Electrochemical Properties of cast magnesium anodes

Item

Open-circuit Voltage

Close-circuit Voltage

Actual capacitance

Current efficiency



(-V)

(-V)

(A.h/g)

(%) ,

High Potential

1.70-1.75

1.57-1.62

≥ 1.100

≥ 50

Low Potential

(AZ63)

1.50-1.55

1. , 45-1.50

≥ 1.105

≥ 50

Note: Open and Close-circuit voltage is relative to Saturated Calomel Electrode
(SCE)


Application:


The corrosion of metal in salt or fresh water or in soil can be prevented by
the use of galvanic anodes in a cathodic protection system. Magnesium anodes
are used in such systems, most commonly to protect underground gas, oil and
water pipelines.


Company Brief Introduction:


We are a professional anode supplier over 16 years ,mainly supply:

* Zinc anodes (ASTM B418-95 US MILL 18001K)

* Al-Zn-In anodes (GAIII)

* Magnesium anodes ( ASTM-G97)

* High silicon cast iron anodes ( ASTM-A518-3,BS1591)

Our anodes are shipped worldwide especial main to North America, Asia
etc., around 5000mt per year. Our goods are regularly tested by independent
third party lab in USA to keep anode continuous high quality. Our plant owns
raw material resources ore, so we can supply very good price with service for
you.

We can also accept customized anodes with your logo according to your
drawing !


Office, Workshop, Inspection Lab:


High Potential Pipeline Cathodic Protection System 0


Company Principle:


Our Belief: Continuous Innovation.

Our Spirit: Sincerity, Unity, Dedicated, Hardworking.

Our Mission: Provide most advanced products & most professional technical
solution.

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