On the U-1 form the minimum thickness after forming .367" and the corrosion allowance is .063". Sec. VIII states that the minimum thickness is .367" after forming, including the corrosion allowance.
Does this mean the corrosion is already factored in meaning the true minimum thickness is .367" or is it .367" minus the corrosion allowance which is .304".
Does this mean the corrosion is already factored in meaning the true minimum thickness is .367" or is it .367" minus the corrosion allowance which is .304".