Way Ahead In Corrosion Control

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 4.75 - 5.75 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

Retrofit anode systems

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For platforms

Anode retrofit projects for aging fixed platforms

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For subsea pipelines

Subsea pipeline anode replacement projects

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For FPSOs

Anode retrofit projects for FPSO hulls and floating production

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For drilling equipment

Anode designs for drill stacks and production risers

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For tank internals

Anode systems installed inside tanks and process vessels

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For docks and piers

Day-one and retrofit anode projects for terminals and jetties

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For subsea equipment

Retrofit anode projects for subsea production equipment

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For renewables

Retrofit anode systems and monitoring projects for wind

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