Corrosion in CAESAR II is handled differently depending on what your active piping code is.
For example, B31.1 doesn't mention corrosion, so even if you specify a corrosion allowance, we ignore it.
B31.3 on the other hand states that a corroded section modulus should be used when computing the stresses for the SUS and OCC load cases.
So, what do you do if you're running B31.1 and want to consider corrosion? Or, what do you do if you're running B31.3 and want to corrode the EXP case?
Answer: Check the checkbox for "All Stress Cases Corroded". When you do this, we corrode everything according to your input.
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Regards,
Richard Ay - Consultant