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The 9th International STESSA Conference on the Behaviour of Steel Structures in Seismic Areas took place from February 17 to 19 in Christchurch (New Zealand). This conference, which is triennially held, is organized by the Steel Construction New Zealand Incorporated (SCNZ) in cooperation with the University of Auckland, the University of Canterbury and the University of Naples. Like the previous STESSA Conferences, the University of Canterbury was selected to host this event.

This is part 3 of our series on surface treatments of components. Due to the great number of different chemical processes, we have split them up and explored these processes in the previous article:

• Chromate conversion coating
• Phosphating
• Galvanizing
• Plating
• Black oxide.

This blog article covers the remaining chemical processes commonly applied for the treatment of component surfaces.

In our first blog article we presented the most common mechanical processes for the treatment of component surfaces. In this second part, we address the most frequently used methods of chemical surface treatments. The decision as to which of the following treatments should be applied is predominantly influenced by design points of view, technical aspects and the intended appearance of the product.