Cathodic Protection – Titanium Anode

Cathodic Protection Titanium Anode

Substrate: Titanium Grade 1 strip
Coating: Iridium-tantalum/ruthenium-iridium

Coated Titanium Anodes for Impressed Current Cathodic Protection—MMO Active Coated Titanium Anodes use titanium as a substrate and use thermal decomposition to form an oxide coating of platinum group metals.

  1. Lightweight and good chemical stability, even in low pH and chloride ion-containing environments;
  2. During the design life of the anode, the size is stable;
  3. Uniform coating loss rate, 1-6mg/A.a;
  4. Can work under high current density, 2000A/m²;
  5. Conductivity, 10-7Ω·m.

Coating Type

No. Coating Type Application
1 Ru-Ir-Ti
  • Anti-corrosion materials for seawater environment
  • Anti-corrosion of marine bridges
2 Ir-Ta
  • soil
  • backfill
  • freshwater
  • Tank Protection
  • construction

Anode classification

  1. Wire anode
  2. Pure titanium wire: size and properties conform to ASTM standard B348 grade 1 and grade 2.
Dia(mm) Length(m) Current output (mA/m) Expected life(a)
1.5 300 328 20
3.0 300 656 20
  • continuous level bed
  • non-continuous level bed
  • Shallow buried vertical bed
  • ground storage tank
  • underground storage tank
  • cable protection
  • water storage tank
  • water treatment equipment

2. MMO ribbon anode

substrate: Titanium strip conform ASTM standard B265 grade 1 and grade 2

Coating Type: IrO2-TaO5 -X

Wmm Tmm Lmm Current output (mA/m) Expected life(a)
6.35 0.635 152 17 75
12.7 0.635 152 34 75


Application and Features

  1. Ribbon titanium anodes are often made into grids
  2. The anode is easy to cut off and thus can be used for cathodic protection of all areas of the tank floor
  3. Uniform current distribution
  4. Excellent performance when used in reinforced concrete structures and good bond with concrete
  5. Anode ribbon spacing can be adjusted to achieve the required design life


3. Titanium conductor bar

Substrate: Titanium bar conform to ASTM standard B348 grade 1 and grade 2
Coating type: choose different types according to the medium used for cathodic protection

Dia(mm) Length(m) Weight kg surface area m²
3.2 1000 0.036 0.01
6.4 1000 0.145 0.02
12.7 1000 0.57 0.04
19 1000 1.275 0.06
Application and Features

Condensate tank, heat exchanger, ground bed
High current output, constant resistance Unaffected by inrush current, can withstand high current overload during initial polarization without damaging the anode

4. Mesh Anode

substrate: Titanium mesh conform to ASTM standard B265 grade 1 and grade 2

Coating type: choose different types according to the medium used for cathodic protection

W mm  T mm L mm Weight g surface area m²
32.5 1 1220 178 0.08
20 1 1000 90 0.04
Application and Features

Can be made into a cylindrical shape to replace ferrosilicon anode Cathodic protection of reinforced concrete piers and bridge decks
Parking lot, flood control embankment, wharf

5. Tubular Anode

Substrate: Titanium tube conforms to ASTM standard B338  grade 1 and grade 2
Coating type: choose different types according to the medium used for cathodic protection

OD mm T mm L mm W kg surface area m²
19 1 1200 0.3 0.072
25 1.5 500 0.25 0.039
25 1.5 1000 0.5 0.079
25 1.5 1200 0.6 0.094
25 1.5 1500 0.75 0.118
31 2 1200 1 0.121
Application and Features
  • Tubular anodes can be used individually or in strings
  • Can be used in all natural environments, such as soil, freshwater, seawater, soil, etc.
  • Current output depends on anode size, substrate, application, and design life
  • The larger the specific surface area, the larger the current output and the smaller the anode grounding resistance.
  • Tubular anodes save 15-35% on installation costs compared to other anodes
  • The unique flexibility of tubular anodes for easy handling, transport, and installation
  • Anode/cable resistance less than 0.001ohms
  • Standard coating quantity anode guarantees a life of 20 years


Quality checks:

Accelerated Life Test, Coating Thickness Test, Coating composition test, Conduct electricity conductivity testing,
Surface roughness test, Helium Leak Detection Test, Contact Resistance Test, Electrochemical Performance Test, and other tests.


Improving current efficiency and prolonging service life are the core technical indicators of DSA titanium electrodes. Different industries have different requirements for the performance of titanium electrodes. Even if the same industry uses the same system of electrocatalytic coatings for different electrolytes, it may not be possible. Bring the ideal use effect. Based on years of accumulated R&D and production experience and a high-level technical team, the company can tailor a coating system that meets its own production environment for target customers to meet the differentiated needs of different industries or different customers in the same industry.



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