api 650 corrosion allowance 1

[giorgiobello]

i have to design a tank for gasoline 75 feet diameter and 48 feet tall.I need to know how approximately should be the thickness of the layer on shell against corrosion.
thank you very much to all

 

[JStephen]

If you are a tank fabricator, the corrosion allowance, if any, should be specified by the customer. And if they don't specify any, there's not any.

If you are the owner, it should be based on your previous experience using similar tanks and similar products.