Question

A crude oil tower carbon steel overhead pipeline has been shutdown due to an accident. The minimum wall thickness required is 0.15 in. The current corrosion rate is 40 mils/year. Another shutdown for inspection is scheduled to take place after two years. Calculate the required remaining thickness and suggest the best possible solution to the problem. POST THE SOLUTION IN NEAT READIBLE SCRIPT PLEASE!!

Answer 1

The application of a paint coating is a cost-effective way of preventing corrosion. Paint coatings act as a barrier to prevent the transfer of electrochemical charge from the corrosive solution to the metal underneath.

Another possibility is applying a powder coating. In this process, a dry powder is applied to the clean metal surface. The metal is then heated which fuses the powder into a smooth unbroken film. A number of different powder compositions can be used, including acrylic, polyester, epoxy, nylon, and urethane.