The cathode is one of the main components of the anodic protection system, which is responsible for completing the circuit. The anodic protection cathode shall be have good corrosion resistance and may have different chemical composition depending on the corrosive environment.
Suitable cathode materials for anodic protection in various environments
| Cathode Metal | Environment |
| Platinum-clad brass | Sulfuric acid with miscellaneous concentrations |
| Stainless steel (Cr-Ni Steel) | Sulfuric acid fertilizer solution |
| High silicon-cast iron | Sulfuric acid |
| IKhl8NIOT | Nitrogen fertilizer solution, ammonium hydroxide |
| Hastelloy C | Sulfuric acid fertilizer solution |
| Copper | Hydroxylamine Sulfate |
| AISI 304 | Sulfuric acid |
| S30400 | Sulfuric acid fertilizer solution |
| Nickel plated | Electroless nickel plating bath |
Borna Electronics Co. declares its readiness to design and build a variety of anodic protection cathodes based on the requests of respected clients or project needs.