This work presents a novel testing procedure to evaluate Electric Resistance Welded (ERW) / High Frequency Welded (HFW) pipe weld seam susceptibility to embrittlement when exposed to a wet sour environment. This procedure offers a simple and practical complementary testing option in addition to NACE TM0284 and TM0177 [1 & 2]. This procedure was developed, tested and patented by Aramco (U.S. Patent No. 11,235,427) as a reliable technique to assure the reliability and increase the confidence limits of the HFW pipe weld seam [3]. This patented procedure has the potential to be developed further and adopted by international standards including NACE and API.

Subject
Embrittlement, Hydrogen induced cracking, Test methods, Seams, Materials, Piping, Base metals, Elongation, Steel, Hydrophobic interaction chromatography, Sulfide stress cracking, Ductility, Test specimen
Keywords:
ERW/HFW, pipe, seam, embrittlement, sour, H2S, SSC, HIC, test, procedure
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2023
Association for Materials Protection and Performance (AMPP)
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