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Corrosion test on CS weld specimen to assess susceptibility for preferential corrosion from wet CO2

thread338-480268

Corrosion test on CS weld specimen to assess susceptibility for preferential corrosion from wet CO2

Corrosion test on CS weld specimen to assess susceptibility for preferential corrosion from wet CO2

(OP)
Dear all,

In one of our plants we have noticed internal preferential corrosion in the CS welds mainly due to wrong filler material used during the welding process. The driver for corrosion mechanism is wet CO2 gas. We are planning to replace the pipework with a suitable weld metallurgy and correct welding procedure. As a due diligent approach we would like to do some corrosion test on the weld specimen to ensure that the weld metallurgy is resistant to preferential corrosion. Can you suggest any relevant ASTM standard for such tests to be carried out on CS weld sample?

Thanks

RE: Corrosion test on CS weld specimen to assess susceptibility for preferential corrosion from wet CO2

Why not rely on the results of hundreds of research papers.
This well researched and the testing is not trivial.

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P.E. Metallurgy, consulting work welcomed

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