Evaluation of Corrosion Behaviour of Corrugated Galvanised Sheets

While corrosion is a known cause of resource depletion,
hot dip galvanising is a proven way of increasing the corrosion resistance of mild steel substrates. The
coating chemistry and post-dip passivation method
affect the life of the coating. Before the commission-
ing of the Galvanising Line Number 1 at the CRM in
Tata Steel, a comparative evaluation of the performance
of galvanised corrugated sheets from the Indian market
was taken up. In order to improve the understanding
of corrosion of GC sheets, marine corrosion tests
and laboratory corrosion tests as per international
standards were conducted to assess their ability to
resist corrosion.