Sour service behavior of a 110ksi material was investigated in a range of production environments. Slow strain rate tests were performed at a strain rate of 510-7/s, in sweet as well as in sour production environments. The strain to failure in sweet environments is lower than the in-air values and is substantially lower in the presence of H2S.
Stress corrosion cracking (SCC) of austenitic stainless steels, while not as prevalent as that in nickelbased alloys such as Alloy 600 and Alloys 82/182, has been observed in the primary system of commercial pressurized water reactors. These instances of SCC have been associated with water chemistry issues and/or occluded regions; however, in many cases high levels of cold work were also present in the material as well.