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Pipeline SCC

Pipeline SCC

Pipeline SCC

(OP)
Hi all,

for the corroded pipeline, the ASME B31G uses the depth and the lengths of the corrosions to determine the remaining strength. Is there an effect of the width of the SCC colonies on the mechanical resistance of the pipeline?

Thank you

RE: Pipeline SCC

Not familiar w/that spec., but do you mean MIC colonies instead of SCC?

RE: Pipeline SCC

(OP)
SCC: Stress Corrosion Cracking

RE: Pipeline SCC

Yes, I've been involved w/SCC for about 35 years or more, and have never heard of SCC colonies.

RE: Pipeline SCC

(OP)
To metal guy.
It is possible that there is a problem of terminology as shown by Steve. Any way, you can do a Google search on "SCC colonies" and you will see.

RE: Pipeline SCC

SCC on the OD surface of gas pipelines has long been recognized. When SCC occurs, it is manifested in clusters of multiple cracks (colonies). It is not to be associated with the growth of colonies of micro-organisms related to MIC.

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