Standard for Piping Corrosion allowance rate ?
Standard for Piping Corrosion allowance rate ?
(OP)
Hi.
Is there any standar wich define corrosion allowance rate for differents materials pipes ? I need to answer to client to justify the tipical value of corrosion, referred in any standard.
Thanks in advance!!.
Is there any standar wich define corrosion allowance rate for differents materials pipes ? I need to answer to client to justify the tipical value of corrosion, referred in any standard.
Thanks in advance!!.





RE: Standard for Piping Corrosion allowance rate ?
For plain grade CS piping system (A106-B etc), 1 mm for very mild up to 3 mm for very corrosive services is normal.
For plain grade SS piping systems (304, 316 etc), 0 for non-corrosive up to 1 mm for corrosive services is normal.
RE: Standard for Piping Corrosion allowance rate ?
The selection of a corrosion allowance is subjective and is based on the expected corrosion of the process fluid AGAINST the selected piping materials........ if no corrosion expected, a zero CA is justified.
MJCronin
Sr. Process Engineer
RE: Standard for Piping Corrosion allowance rate ?
For stainless steels, Nickel base alloys and titanium alloys, CA is most often 0.
CA must reflect the severity of corrosive service and the planned, safe life of the system.
RE: Standard for Piping Corrosion allowance rate ?
RE: Standard for Piping Corrosion allowance rate ?