Sacrificial anodes

Aluminum and zinc anodes for cathodic protection of offshore and marine assets

ANODES FOR NEW ASSETS

PLATFORM ANODES

HULL ANODES

PIER & PILING ANODES

PIPELINE BRACELET ANODES

DUAL CLAMP-ON ANODES

ALLOY SPECIFICATIONS

CHEMISTRIES FOR ALL DEPTHS

Water salinity and temperature requires different anode chemistries for optimal performance. Deepwater has the Deep07 and Deep10 aluminum chemistries for most seawater applications.

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Alloy type	Deep7 Aluminum	Deep10 Aluminum	Zinc MIL-A-18001-K
Iron (Fe)	0.07 max	0.10 max	0.005 max
Silicon (Si)	0.10 max	0.10 max	N/A (0.00)
Copper (Cu)	0.003 max	0.006 max	0.005 max
Zinc (Zn)	4.75 - 5.25	3.00 - 6.00	remainder
Indium (In)	0.015 - 0.025	0.010 - 0.020	N/A (0.00)
Titanium (Ti)	0.025 max	0.025 max	N/A (0.00)
Others (each)	0.02 max	0.02 max	0.10 max
Aluminum (Al)	remainder	remainder	0.1 - 0.5
Lead (Pb)	N/A (0.00)	N/A (0.00)	0.006 max
Cadmium (Cd)	N/A (0.00)	N/A (0.00)	0.025 - 0.07

Electrochemical properties

Alloy type	Deep7 Aluminum	Deep10 Aluminum	Zinc MIL-A-18001-K
Open circuit potential	(-) 1.08 V vs Ag/AgCl sw.	(-) 1.08 V vs Ag/AgCl sw.	-1.05 Volts (Ag/AgCl)
Closed circuit potential(1)	(-) 1.05 V vs Ag/AgCl sw,	(-) 1.05 V vs Ag/AgCl sw,	N/A
Seawater capacity @25C	1100 A-Hr/lb. (2420 A-Hr/Kg.)	1100 A-Hr/lb. (2420 A-Hr/Kg.)	N/A
Seawater capacity @ 5C	1100 A-Hr/lb. (2420 A-Hr/Kg.)	Variable (2)	N/A
Seabed mud capacity (3)	950 A-Hr/lb (2090 A-hr/Kg.)	950 A-Hr/lb (2090 A-hr/Kg.)	N/A
Seabed mud capacity @ 5C	950 A-Hr/lb (2090 A-hr/Kg.)	Variable (2)	N/A
Nominal current capacity	N/A	N/A	780 amp-hr/kg

Physical properties

Alloy type	Deep7 Aluminum	Deep10 Aluminum	Zinc MIL-A-18001-K
Alloy density	0.105 lb/in3 (2.91 gm/cm3)	0.105 lb/in3 (2.91 gm/cm3)	N/A
Cost ratio	Low Iron (Fe) Aluminum (Al) Ingot < 0.05 Fe	Normal Grade Al Sows	N/A
Raw material & conversion	1.10	1.00	N/A