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Low Density High Potential Magnesium 20D2-2 Sacrificial Anode

  • Low Density High Potential Magnesium 20D2-2 Sacrificial Anode
Place of Origin CHINA
Certification USA: G97，ASTM
Minimum Order Quantity 1000KGS
Price Negotiable
Packaging Details Pallet packing, or on customer's request
Delivery Time 30 Days after receiving the deposit
Payment Terms 50% Deposit , 50% Balance before deliver to the port
Supply Ability 500 mts per month

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Product Details
Keywords High Potential Magnesium Anode Material High Purity Magnesium
Application Cathodic Protection Adventage Better Electrochemical Properties
Service OEM / OEM Technical Standard GB/T 17731-2015
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High Potential Magnesium Anode 20D2-2

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Low Density High Potential Magnesium Anode

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20D2-2 Sacrificial Anode
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Product Description

Low Density High Potential Magnesium Anode With High Chemical Activity
 
Introduction:
 
The earliest pure magnesium was used as a high-potential magnesium anode, followed by the Mg-Mn system with higher current efficiency, reaching about 50%. Relevant studies have shown that the chemical composition of the anode has a greater impact on the current efficiency and open circuit potential of the anode.
 

The main characteristics of high-potential magnesium alloy sacrificial anodes are large electricity per unit mass, high potential, small specific gravity, relatively negative potential, high driving voltage to Fe, low current efficiency, etc., especially suitable for high resistivity media. When using magnesium alloy sacrificial anode, care should be taken to avoid collision with steel structure. Both the American standard ASTM8431993 (2003) and the Chinese standard GB/T177312004 require that the current efficiency of high-potential magnesium alloy sacrificial anodes be higher than 50% and the potential higher than 1.77 V.


Chemical composition %:

 

Alloy

Al
(max)

Mn
(max)

Si
(max)

Cu
(max)

Ni
(max)

Fe
(max)

Other impurity(each)
(max)

Total Impurities
(max)
Mg-Mn 0.01 0.50-1.30 0.05 0.005 0.001 0.03 0.05 0.30

 
The electrochemical performance of:
 

Open voltage
(-V)

Closed voltage
(-V)

Actual capacity
(A.h/kg)

Efficiency
(%)
1.70-1.75 1.58-1.62 1230min 50min

 

Specification:

 

Type Weight(kg) Width(mm) Hight(mm) Length(mm) Insert
9D2-1 4.1 63.5 63.5 669.9 Strip
9D2-2 4.1 69.9 76.2 560 Strip
14D2-1 6.35 63.5 63.5 1054 Strip
14D2-2 6.35 69.9 76.2 850.9 Strip
20D2-1 9.1 63.5 63.5 1505 Strip
20D2-2 9.1 69.9 76.2 1270 Strip
9D3 4.1 88.9 95.25 258.8 Strip
17D3 7.7 88.9 95.25 657.2 Strip
32D5 14.5 139.7 146.05 523.9 Strip
48D5 21.8 139.7 146.05 765.2 Strip

 

Advantage:

 

Cathodic protection technology is to use a metal or alloy whose potential is more negative than the metal to be protected to be electrically connected to the metal to be protected, and rely on the current generated by the continuous corrosion and dissolution of the metal with a negative potential to protect others.

 

A: The one-time investment cost is low, and there is basically no need to pay maintenance costs during operation
B: The utilization rate of the protection current is high, and no over-protection will occur
C: No interference effect on adjacent underground metal facilities, suitable for plant area and long-distance pipeline without power supply, as well as small-scale decentralized pipeline protection
D: It has the function of both grounding and protection
E: The construction technology is simple and usually does not require special professional maintenance and management.

 

Application:

 

Magnesium anode is the use of magnesium negative potential, its potential is lower than steel, can be used to protect onshore pipelines and other buried structures, such as oil pipelines, natural gas pipelines, underground oil tanks, oil platforms, water heaters, and for the protection of fresh water ships in the environment.

 

Photos:

Low Density High Potential Magnesium 20D2-2 Sacrificial Anode 0

 

 

Tags:

ASTM High Potential Magnesium Anode

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