English
Prepackaged zinc anodes are sacrificial anodes designed to provide galvanic cathodic protection for steel structures exposed to conductive environments.
The zinc anode is supplied in a ready-to-install packaged configuration, making it convenient for transportation, storage and project installation. When electrically connected to the protected steel structure, the zinc anode preferentially corrodes and provides protective current to reduce corrosion of the steel.
Metal supplies zinc sacrificial anodes for different cathodic protection requirements and supports customized anode dimensions, core configurations and packaging according to project specifications.Chemical Composition
| Element | Content (%) |
|---|---|
| Aluminum (Al) | 0.005 max. |
| Lead (Pb) | 0.003 max. |
| Iron (Fe) | 0.0014 max. |
| Copper (Cu) | 0.002 max. |
| Cadmium (Cd) | 0.003 max. |
| Other Impurities | 0.100 max. |
| Zinc (Zn) | Remainder Electrochemical Properties |
| Technical Measurement | Performance |
|---|---|
| Open Circuit Voltage (min.) | -1.10 Volts |
| Closed Circuit Voltage (min.) | -1.05 Volts |
| Current Capacity | 740 A.h/kg (335 A.h/lbs) |
| Current Efficiency (min.) | 90% |
| Consumption Rate | 11.9 kg/A.y (26.2 lbs/A.y) Environment-friendly Backfill |
| Element | Content |
|---|---|
| Powdered Hydrated Gypsum | 75% |
| Granular Bentonite | 20% |
| Anhydrous Sodium Sulphate | 5% |
| Cadmium (Cd) | ≤ 1 ppm |
| Arsenicum (As) | ≤ 1 ppm |
| Mercury (Hg) | ≤ 1 ppm |
| Phosphorus (P) | ≤ 10 ppm |
