Page 1 - Alumin Anodes

Aluminum Anodes

ISO 9001 Certified
ISO 17025 Accredited cert. #3612.01

Galvotec has been producing sacrificial (galvanic) Aluminum Anodes since 1984.
Quality workmanship, on time deliveries, and an experienced dedicated staff has lead
Galvotec to become Americas leading producer of sacrificial anodes.

Aluminum Anodes are typically used in salt water or marine environments where
Cathodic Protection is required. Galvotec meets or exceeds industry standards and can
manufacture any standard or custom anode type you may require.

Galvotec's laboratory is accredited to insure quality with respect to chemical
composition and electrochemical performance. Each heat is analyzed for chemical
composition prior to casting.

Composition Of Aluminum Anode Alloys %

Element Galvotec III 1 Galvotec MIL- MIL-
CW III 2 DTL24779D(SH) DTL24779D(SH)
conventional Low voltage
Zinc (Zn) 2.80 - 6.50 4.75 - 5.75 4.0 - 6.5 0.15 max.
Indium (In) 0.010 - 0.020 0.016 - 0.020 0.014 -0.020 0.005 max.
Silicon (Si) 0.08 - 0.2 0.08 - 0.12 0.08 - 0.20 0.10 max.
Copper (Cu) 0.006 max. 0.003 max. 0.005 max. 0.005 max.
Iron (Fe) 0.120 max. 0.060 max. 0.08 max. 0.08 max.
Mercury (Hg) - - 0.0001 max. 0.0001 max.
Cadmium (Cd) 0.002 max. 0.002 max. 0.002 max. 0.002 max.
Gallium - - 0.02 max. 0.092 - 1.110
Others Ea. 0.02 max. 0.02 max. - **
Others Total 0.05 max. 0.05 max. - -
Aluminum Balance Balance Balance Balance
Electrochemical Properties

Galvotec III Galvotec CW III
1
2
Electrode Potential (Cu/Cu -1.15 V -1.15 V
SO4)
Nominal Efficiency 85% 85%
Nominal Ampere Hours / 1150 1150
Pound
NOTE: 1. Galvotec III Alloy has been utilized on multiple projects around the world for over 30 years

2. Galvotec CW III Alloy has been the preferred composition of the major offshore oil companies for deep and cold water
applications

* Custom Anode Alloys are also available upon request
** As stated in Mil-DTL-24779D(SH)

www.galvotec.com Page 1 of 15 rev 1 2016