CORAL® ‘A’ Special Grade anode alloy is the preferred chemical composition of the major oil and offshore coperator companies for deep water applicantions. The alloy is certified according to DNV Type Approval Programme.
Technical Specification
| Alloying elements | Zn | 4.75 – 5.5 % |
| In | 0.016 – 0.020% | |
| Al | Balance | |
| Other elements | Si | 0.08 – 0.12 % |
| Cu | max. 0.0030 % | |
| Fe | max. 0.06 % | |
| Cd | max. 0.0020 % | |
| Others | Each | max. 0.02 % |
| Others | Total | max. 0.050 |
Anode Performance Data (ambient sea water)
| Capacity : |
2585 Ah/kg (1173 Ah/lb) |
|
Consumption rate : |
3.39 kg/Ayr (7.47 lbs/Ayr) |
|
Closed circuit potential : |
-1.09 volts (Ag/AgCl) |
|
Specific gravity : |
2.78 kg/dm3 (0.101 lbs/cu.in) |
