MMO Titanium anode for Cathode protection
Titanium ribbon anode For pipe Cathode Protection use, the wire anode, plate anode, tube/tubular anode all can be done.
Product Introduction
MMO (Mixed Metal Oxide) titanium anodes are key components in impressed current cathodic protection (ICCP) systems. They are widely used to protect buried or submerged steel structures such as pipelines, storage tanks, and offshore installations from corrosion.
These anodes are especially suitable for environments with high soil resistivity or damaged coating pipelines, as well as large-area applications such as tank bottom protection systems.
Working Principle
Cathodic protection systems operate by applying DC current to the structure:
Titanium MMO anode acts as the auxiliary anode
The protected steel structure becomes the cathode
Electrochemical reactions are controlled to suppress corrosion
During operation:
Oxygen evolution and chlorine evolution reactions occur at the anode
Aggressive ions in soil or water (SO₄²⁻, Cl⁻, CO₃²⁻, OH⁻, H⁺) are stabilized through controlled electrochemistry
The structure is continuously protected from corrosion damage
Ribbon Mesh Anode System
A commonly used structure is the titanium MMO ribbon mesh anode system, formed by:
Ribbon-shaped MMO-coated titanium strip
Cross-welded with titanium conductive strips
Assembled into a mesh or grid system
This structure is widely used for:
Storage tank bottom cathodic protection
Large surface-area grounding systems
New tank construction projects
Standard Specifications
Titanium Ribbon Anode
Base Material: ASTM B265 Grade 1 Titanium
Dimensions:
Width: 6.35 mm
Thickness: 0.635 mm
Standard Coil Length: 152 m/coil
Titanium Conductive Strip
Base Material: ASTM B265 Grade 1 Titanium
Dimensions:
Width: 12.7 mm
Thickness: 0.90 mm
Standard Length: 152 m/coil
Coating Systems
Ir-Ta (Iridium–Tantalum):
Suitable for soil, freshwater, and low-resistivity environments
Ru-Ir (Ruthenium–Iridium):
Suitable for seawater and high-chloride environments
Key Features
High electrochemical stability
Excellent corrosion resistance in soil, seawater, and freshwater
Long service life (up to 20–35 years depending on design conditions)
Low coating consumption rate
Stable performance under continuous current load
Suitable for complex soil chemistry environments
Application Areas
Underground pipelines (oil, gas, water)
Underground and above-ground storage tanks
Tank bottom cathodic protection systems
Condensate tanks and heat exchangers
Water treatment and industrial circulation systems
Marine and offshore steel structures
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