The anodising process is the electrochemical conversion of aluminium into aluminium oxide to provide a coating, which improves the properties of the surface of a product made out of aluminium.
Almost all aluminium used today is alloyed with other metallic elements to improve performance in one way or another. These alloying elements can have an enormous effect on the properties of the anodic film produced. This is especially true for Hard Anodising.
It is very important that designers and manufacturers are armed with as much information as possible when choosing an aluminium alloy that they intend to have anodised.
There is a very wide tolerance in percentage content of the main alloying constituents in most aluminium alloys. These tolerances can give rise to variation in film thickness and colour.
The following is a list of the important alloy types of which we have some experience:
Please click on the materials you are interested in to get a review of their anodising characteristics:
| B.S.& INTERNATIONAL DESIGNATION | OLD B.S |
| 1000 series | 1A, B, C, & E |
| 2000 series | FC1, H15, & H16 |
| 3000 series | N3 |
| 4000 series | N2 |
| 5000 series | N8 |
| 6000 series | H9, H20, H30 |
| 7000 series | H17 |
| CASTING ALLOYS |
