The chemical composition of SYNCOR aluminum anodes is based on the well established Al-Zn-In alloy and it is suitable for most sea water applications. The quality of the anode and especially the alloying procedure is of outmost importance for the performance of aluminum anodes which are generally more susceptible to passivation than zinc. However aluminum alloys have an electrochemical capacity which is more than 3 times greater than the capacity of zinc and it is nowadays the most widely used alloy for the Cathodic protection of ships and other marine metallic structures.
SYNCOR anodes are manufactured from primary metals of high purity, homogenized in large scale melting furnaces and have pre–casting quality control in order to secure that the concentration of all important elements (either impurities or alloying elements) even in very low concentrations is strictly conforming with the specification.
Other special formulations of Al Alloys are also available but mainly used in special offshore application (protection of sub sea pipelines, jetties etc).
Typical Application
Marine
Oil & Gas
Port & Harbors
Offshore wind farms
FEATURES
Chemical Composition
Element | DNV RPB401 | EN12496-A1 | Galvanum III | En12496-A3 | |
Zinc | 2.5-5.75% | 2.0-6.0% | 2.0-4.0% | 4.75-5.75% | |
Indium | 0.015-0.040% | 0.010-0.030% | 0.01-0.20% | 0.016-0.20% | |
Silicon | ≤0.12% | ≤0.12% | 0.08-0.020% | 0.08-0.012% | |
Iron | ≤0.09% | ≤0.12% | ≤0.12% | ≤0.06% | |
Copper | ≤0.003 | ≤0.006 | ≤0.006 | ≤0.003 | |
Cadmium | ≤0.002 | ≤0.002 | ≤0.002 | ||
Other single | ≤0.02% | ≤0.02% | ≤0.02% | ≤0.02% | |
Total Others | ≤0.10% | ≤0.10% | ≤0.10% | ≤0.05% | |
Aluminum | Balance | Balance | Balance | Balance | |
Electrochemical characteristics | |||||
Capacity min | 2500 Ahr/Kg | 2500 Ahr/Kg | 2535 Ahr/Kg | 2500 Ahr/Kg | |
Potential (Ag/AgCl) | -1.09V | -1.09V | -1.10V | -1.09V | |
Consumption rate | 3.5Kg/year | 3.5Kg/year | 3.5Kg/year | 3.5Kg/year |
Anode type: _______
Dimensions: ____ X ___ X ___mm Anode Weight (net/gross) __._/__._9 Kg
Steel
- Pipe
- Plate
- Rod
Specification
- GB/T 700 grade Q235
- GB/T 8162 #20
- Galvanized
Carbon Equivalent (CE): 0.4
Dimensions: OD__ mm Weight _._ Kg
Supporting hole: Dimensions mm
Cable
- 16sqmm XLPE/PVC
- 16sqmm HMWPE
Length: 250mm
Epoxy Coating
- DFT 100microns
- DFT300Microns
Shape
Tapered, weld half shell bracelet anode Type BTW | Square, Bolted half shell bracelet anode Type BSB | Square segment , Welded half shell bracelet anode Type BSG |
Tapered, Bolted half shell bracelet anode Type BTB | Square, hinged and bolted half shell bracelet anode Type BSH | Square, Welded half shell bracelet anode Type BSW |
Trapezoidal anode flush mounted type flat bar | Trapezoidal anode stand off type with double crank flat bar Type SOF |
Trapezoidal anode with tubular insert protruding from doth ends Type SOS |
Trapezoidal anode with “cowhorn” tubular insert protruding from back face Type SOB |
Trapezoidal anode with “goalpost” tubular insert protruding from back face Type SOG |
Trapezoidal anode with “cowhorn” tubular insert protruding from both ends Type SOE |
Flush Mounted Bolted | Flush Mounted “D” shape | Flush Mounted eye Drop |