Zinc Anode
Saturday, 09 February 2019 00:00
Zinc Anode
BORNA GodazSupply the highest quality zinc anodes having a driving potential of 250 mv against protected steal at normal ambient sea water temperature. Zinc anode should not be used for above 50 C medium temperature, however the driving potential will be reduced when the temperature increased. Our supplied anodes perform reliably in seawater and seabed mud with resistivity up to 1000 ohm.cm .
Modern zinc anodes used for cathodic protection are made from high purity zinc (99.99%) alloyed with aluminum and cadmium. The levels of lead, iron and copper are strictly under control.
Typical Applications
- Submarine pipelines
- Offshore structures
- Quay walls
- Marine applications
- Ballast tanks
- Storage tank internals
- Water tanks
- Ships hulls
| Zinc chemical composetion | |||
| Element | Alloy Type1 | Alloy Type2 | |
| Aluminum (%) | 0.10 - 0.5 | 0.005 max | |
| Copper (%) | 0.005 max | 0.002 max | |
| Iron (%) | 0.005 max | 0.0014 max | |
| Lead (%) | 0.006 max | 0.003 max | |
| Cadmium (%) | 0.07 max | 0.003max | |
| All others (%) | 0.02 max | 0.012 max | |
| Zinc (%) | Remainder | Remainder | |
|
Standards: |
|||
| NACE - DNV | |||
| U.S.Military | |||
| ASTM – IPS | |||
| Eletrical Properties | Environment | |
| Sea water | Sediuments | |
| Electrochemical capacity (Ah/Kg) | 780 | 700 |
| Closed circuit potential (V) | -1.00 | -0.95 |
| (Respect to Ag/Agcl reference electrode) | ||
| Efficiency (%) | 85 | 85 |
The capacity of zinc remains almost constant despite changes in operating current density and it is particularly useful when employed in conjunction with well coated structures where low operating currents will be required during the first years of the system life.
BORNA Godazzinc anodes can be made in various shapes &size to suit individual applications. They normally have steel-bar or rod cores for attachment to the structure by welding, or either bolts & clamps.
The following documents show typical datasheets of Zinc anode made in BORNA Godaz company. Also, Other informations such as ITP, QCP, chemical and electrochemical reports and certificates have shown here.
Datasheet sample of disk zinc anode (Weight=1.4Kg)
Datasheet sample of rectangular zinc anode with weld connection (Gross Weight = 10Kg)
Chemical analysis report sample of BornaGodaz zinc anode
Electrochemical test report of BornaGodaz zinc anode
BornaGodaz zinc anode catalogue
