The knowledge of aluminium, on its behavior and on how it is best used, is not as widely available as it is for steel. As a specialist, Highrise conducts studies and tests to broaden our view on different aspects of this light and strong construction-material. One particular aspect is corrosion; on one end aluminium is regarded as highly resistant to corrosion, on the other hand we know that is can also be vulnerable; for instance, galvanic corrosion can be a threat. Recently our company has executed salt spray testing to find the most suitable bolt materials for bolted joints in offshore aluminium constructions. The article here below explains the reasons why and the findings. Special thanks to M2lab voor testing.