Galvanic Zinc Anode Marine Cathodic Protection
| Min. Order: | 10 Kilogram |
|---|---|
| Trade Term: | FOB,CIF,DDP,EXW |
| Payment Terms: | L/C, T/T, WU |
| Supply Ability: | 10000000 Ton/Tons per Year |
| Place of Origin: | Shaanxi |
Company Profile
| Location: | Xi'an, Shaanxi, China (Mainland) |
|---|---|
| Business Type: | Manufacturer |
Product Detail
| Model No.: | TJS |
|---|---|
| Means of Transport: | Ocean, Air, Land |
| Brand Name: | TAIJIN |
| Brand Name:: | TAIJIN Zinc Anode |
| Type:: | Sacrificial anode |
| Zn (Min):: | 99.996% |
| Alloy Or Not:: | Zinc-Alloy |
| Diameter:: | customized |
| Surface Treatment:: | Bright |
| Certificate:: | CCS |
| Packaging Details:: | wooden cases |
| Molding technics:: | Pressure casting |
| Application:: | Marine ,Ship Cathodic Protection |
| Production Capacity: | 10000000 Ton/Tons per Year |
| Packing: | wooden cases |
| Delivery Date: | general 20days |
Product Description
Galvanic Zinc Anode Marine Cathodic Protection
Xi'an Taijin's sacrificial Zinc Anodes are applied in Low Resistivity Soils below 1000Ω-cm and in Sea Water or produced Brines.. Zinc Anodes are widely used in bulkheads, piers and pilings, heat exchanger and condenser, pipelines, vessels and tankers. etc.
The performance of Zinc Anodes is affected by the chemical composition of the alloy, we have different alloy series to meet customer's request. Special shape, size and chemical composition anodes can be manufactured according your request.
A galvanic anode is the main component of a galvanic cathodic protection (CP) system used to protect buried or submerged metal structures from corrosion.
They are made from a metal alloy with a more "active" voltage (more negative reduction potential / more positive electrochemical potential) than the metal of the structure. The difference in potential between the two metals means that the galvanic anode corrodes, so that the anode material is consumed in preference to the structure.
The loss (or sacrifice) of the anode material gives rise to the alternative name of sacrificial anode.
Zinc Alloys Chemical Composition:
Elements | ASTM B418 TYPE I MIL A -18001K | ASTM B418 TYPE II |
Aluminum | 0.01- 0.50 | 0.005 max |
Cadmium | 0.025-0.07 | 0.003 max |
Lead | 0.006 max | 0.003 max |
Copper | 0.005 max | |
Iron | 0.005 max | 0.0014 max |
Others(each) | 0.02 max | |
Total others | 0.05max | |
Zinc | Remainder | Remainder |
Phsical Characteristics:
| Term | Specification |
| Tensile strength M pa | 115±10 |
| Elongation % | 45±5 |
| melting point | 419 |
| Density g/m3 | 7.14 |
The Electrochemical Properties
| Open Circuit Potential/V | Operating Potential/V | Current Capacity/ (Ah/kg) | Current Efficiency/ % | Romsumption Rate/ kg. (A. a)-1 | Dissolving Pattern |
| -1.18~-1.10 | -1.12~-1.05 | ≥ 2400 | ≥ 85 | ≤ 3.65 | Dissolves uniformly |
Features:
Long lasting shine
Startling design
Rust resistance
High purity
Applications:
• Hulls of ships, barges, boats and tugs
• Ballast tanks of tankers, ore carriers and freighters
• Bulkheads
• Piers and Pilings
• Pipelines
• Heat Exchangers
Cost effectiveness
As the anode materials used are generally more costly than iron, using this method to protect ferrous metal structures may not appear to be particularly cost effective. However, consideration should also be given to the costs incurred by removing a ship from the water, for example, to repair a corroded hull or to replace a steel pipeline or tank because their structural integrity has been compromised by corrosion.
However, there is a limit to the cost effectiveness of a galvanic system. On larger structures, or long pipelines, so many anodes may be needed that it would be more cost-effective to install impressed current cathodic protection.
