Is there any formula or procedure to calculate corrosion allowance for ASME B31.3 Piping?
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No, there is not a formula for finding a B31.3 corrosion allowance in piping design and specification. This is something that the system owner or purchaser must address. There should be some consideration of expected piping system lifetime.
The corrosion allowance for carbon steel systems is typically 1/16 inch. Stainless steel systems - zero and acid service (ie. Sulfuric acid and hydrochloric acid) 1/8 inch
Many engineering companies develop guidelines and this allowance should be incorporated into contract documents
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