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MG Duff has been at the forefront of marine cathodic protection, including sacrificial anodes, since the early 1950s. The company continues to be one of the largest suppliers of systems and services to the marine market in the UK and throughout the world. Their involvement in corrosion control spans all aspects of the marine sector, from the leisure boat market and commercial deep-sea shipping to coastal and shoreline structures such as piling, jetties, lock and dock gates, linkspans, and pontoon systems.
MG Duff has an experienced technical department and offers full design services and technical support as well as providing the most comprehensive range of sacrificial anodes and impressed current cathodic protection systems.

Prices correct as of January 2021. All prices are +VAT.

MG Duff Yacht & Powerboat 6.0 Catalogue (4MB)
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Specification Code
Composition
Aluminium Alloy X 
Specification Code
Composition
Magnesium Alloy High Purity
Specification Code
Composition
Zinc Alloy US Mil Spec 18001K
Iron
Fe
0.12 Max
Copper
Cu
0.08
Iron
Fe
0.005 Max
Silicon
Si
0.05 – 0.15
Aluminium
Al
5.3 – 6.7
Cadmium
Cd
0.025 – 0.07
Copper
Cu
0.003 Max
Silicon
Si
0.3 Max
Copper
Cu
0.005 Max
Zinc
Zn
3.0 – 6.0
Iron
Fe
0.005 Max
Aluminium
Al
0.10 – 050
Indium
In
0.015 – 0.030 Max
Manganese
Mn
0.25 Min
Lead
Pb
0.006 Max
Mercury
Hg
0.001 Max
Nickel
Ni
0.003 Max
Others Total
Titanium
Ti
0.025 Max
Zinc
Zn
2.5 – 3.5
0.10 Max
Others EachLead
Pb
0.03
Zinc
Zn
Remainder
0.02 Max (<0.1 Total)Magnesium
Mg
Remainder
Potential Ag/AgCl
Aluminium
Al
Remainder
Potential Ag/AgCl-1.05 V
Potential Ag/AgCl-1.5 VCapacity- Amp.hr/kg
-1.05 VCapacity- Amp.hr/kg780
Capacity- Amp.hr/kg1230
Typically 2500