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Chromic acid anodizing of Clad 2024 aluminum alloy sheets vs. bare material

August 9, 2013

Q. Hello,

I am looking for some expertise/opinion on technical/economical advantage/disadvantage of chromic acid anodizing of Clad 2024 aluminium alloy sheets thickness 0.063-0.80" in comparison to same bare alloy .

Sam Henein
- Toronto, Ontario, Canada

August 13, 2013

A. Hi Sam,

2024 is a nominal 4.4% copper containing alloy and is one of the harder alloys to get a consistent finish (not impossible, just not as easy). With cladding you have a pure aluminum surface, which is easier to anodize with more consistent results.

Brian Terry
Aerospace - Yeovil, Somerset, UK

August 15, 2013

Dear Brian,

Thank you for the response to my question.

Sam Henein
- ON, Canada

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