Aluminum Alloy Anode

INTRODUCTION

Aluminum Alloy Anodes are cast from special aluminum alloys suitably formulated for specific application, they are characterized by light weight, smooth corrosion pattern, high electrical capacity and stability. Aluminum alloy anodes offer higher current efficiency and lower anode consumption then both magnesium and zinc in aqueous saline areas, making aluminum ideal for the protection of ship hulls on ocean-going vessels.
Aluminium Anode.jpg (10371 ­Ó¦ì¤¸²Õ) APPLICATION

Aluminum alloy anodes are suitable for a wide variety of application including the hulls and tanks of ships, fixed off-shore structure, semi submersibles, pipelines and jetties

CHEMICAL COMPOSITION

Composition Type III Type IV
Zinc 2.8 - 6.5% 2.8 - 6.5%
Indium 0.01 - 0.03% 0.01 - 0.03%
Iron 0.13% 0.22%
Silicon 0.21% 0.21%
Copper 0.006% 0.01%
Others (each) 0.02% 0.02%
Aluminum remainder remainder

ELECTRICAL PROPERTIES

Properties Type III Type IV
Nominal potential - 1100mV, Ag/AgCl - 1100mV, Ag/AgCl 
Nominal current capacity 2,700 Amp/kg 2,600 Amp/kg