Description

This alloy is very hard and protects the steel against corrosion. Galvannealed steel can be used for any application where a high level of corrosion resistance is required, e.g. it is particularly suitable for the construction of pipelines, tanks, etc. The coating is normally removed after the initial exposure to ambient conditions to obtain the properties of bare steel. For this purpose, the hot dip zinc coating is usually first dissolved in a bath containing sulphuric acid or hydrochloric acid and then stripped off with hot water.