Crevice corrosion may occur in narrow spaces where the corrosive agent can enter but without circulation, with a lack of oxygen as consequence.The tighter the crevice, the greater the risk of problems with crevice corrosion.

Typical examples of crevices are confined regions such as:

⦁ Flange connections

⦁ Bolt heads to washers

⦁ Washers to base plates

⦁ Threaded connections

⦁ Under deposits (under deposit attack)