High temperature anode, HT-Anode

The HT-Anode zinc anode alloy is designed for elevated temperature applications. The anode is also recommended for environmental reasons (cadmium free).

Chemical composition:

  • Aluminium (Al): Min 0.1 – max 0.21
  • Cadmium (Cd): Max 0.001
  • Iron (Fe): Max 0.002
  • Copper (Cu): Max 0.001
  • Magnesium (Mg): Min 0.06 – max 0.15
  • Lead (Pb): Max 0.004
  • Others (total): Max 0.05
  • Zinc (Zn): Remaining

Electrochemical properties at 20 °C ambient sea water conditions:

  • Capacity: 780 Ah/kg
  • Consumption rate: 11.2 kg/Ayear
  • Closed circuit potential: -1030 mV Ag/AgCl/seawater 

Performance data at elevated temperatures:

The capacities are based on 28 days test performed by Force Technologies adapted from the procedures in DnV RP B401, annex B and C.

Temperature Capacity Potential (close circuit vs. Ag/AgCl)
20 °C 800 Ah/kg capacity -1030 mV
60 °C 769 Ah/kg capacity -1010 mV
80 °C 774 Ah/kg capacity - 980 mV
90 °C 754 Ah/kg capacity - 950 mV

  

Properties of HT-Anode

  • Designed to meet the demand of sacrificial anodes at elevated temperature conditions, for instance in oil cargo tanks.
  • Demonstrates consistance behavour at temperatures where conventional anodes collapse.
  • Targeted to be cadmium free, and hence also recommended for environmental reasons.