Effect of grain size on stress corrosion cracking resistance of alloy G-3 (UNS N06985) OCTG in sour gas environments
Conference
·
OSTI ID:351736
- Inco Alloys International, Inc., Huntington, WV (United States)
Limited corrosion data exists on the effect of grain size on the stress corrosion cracking (SCC) resistance of Oil Country Tubular Goods (OCTG) to sour gas environments. Among the primary Corrosion Resistant Alloys (CRA`s) currently used in the cold worked condition for OCTG in sour gas wells is alloy G-3 (UNS N06985). Slow strain rate (SSR) tests conducted in a severe sour brine environment representative of Mobile Bay type conditions showed that the grain size of alloy G-3 OCTG has no discernible effect on stress corrosion cracking resistance. Also, no effect of grain size on intergranular attack (IGA) susceptibility was observed in the Streicher Test, ASTM Standard Test Method G28A.
- OSTI ID:
- 351736
- Report Number(s):
- CONF-980316--
- Country of Publication:
- United States
- Language:
- English
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