Zinc Alloy Sacrificial Anode

Zinc Anode

Zinc anode is a commonly used cathodic-protection material relying on electrochemical principles for active corrosion protection. Made from refined high-purity zinc alloy, it requires no external power, is maintenance-free, and causes no over-protection damage to the substrate. Suitable for seawater, freshwater and low-resistivity soil, it is widely used in marine, pipeline, storage-tank and steel-structure engineering, serving as an economical and durable long-term anti-corrosion solution for ship and marine applications, offshore engineering, buried oil/gas and water-supply pipelines, storage-tank bottoms, steel bridges, hydraulic facilities and various metal equipment.

  • Stable and high-efficiency performance
  • Safe, no damage to base metal
  • Extra-long service life
  • Easy installation, maintenance-free
  • Broad working-condition adaptability
Ship hulls & ballast tanksOffshore platformsSubmarine pipelinesPort structuresPropeller & rudder protectionMarine piling & sheet piles

Technical Specifications

Chemical Composition

Element AlPbFeCuCdOthersZn
ASTM-B418 TYPE I0.100~0.5000.006 max.0.005 max.0.005 max.0.025~0.0700.100 max.Bal.
ASTM-B418 TYPE II0.005 max.0.003 max.0.0014 max.0.002 max.0.003 max.0.100 max.Bal.

Electrochemical Performance

Technical Measurement ASTM-B418 TYPE I ASTM-B418 TYPE II
Open Circuit Voltage (min.)-1.05 Volts-1.10 Volts
Close Circuit Voltage (min.)-1.00 Volts-1.05 Volts
Current Capacity780 A.h/kg (354 A.h/lbs)740 A.h/kg (335 A.h/lbs)
Current Efficiency (min.)95%90%
Consumption Rate11.2 kg/A.y (24.8 lbs/A.y)11.9 kg/A.y (26.2 lbs/A.y)

*The open/close circuit voltage is with respect to a saturated calomel electrode.

Need a quotation or free samples?
Get a Quote Contact Us Now