ANODE SELECTION / ALUMINIUM ANODE ALLOYS

The key feature for good quality aluminium alloys is to manufacture using only high purity aluminium ingot with specified levels of impurities. Impalloy’s standard aluminium alloy compositions are given below. Other compositions to customers’ particular formulations can also be produced.

Chemical Composition (wt%)

Impalloy III is a general purpose alloy used for relatively short life anodes such as may be used for ships hull and tank anodes.

Impalloy III-S has become widely accepted for use in applications requiring long life such as offshore pipelines, sub-sea structures and marine terminals. This alloy generally conforms to that specified in ISO15589-2 and NORSOK M-503.

Impalloy III-CW is commonly specified by some Oil & Gas Operators for use in deepwater applications.