By CWI555
Date 09-16-2007 14:37
Edited 09-16-2007 14:39
Think I'd have to agree with you on this one. To me, a corrosive environment is "sour" when H2S is present. There is some disagreement on what "sour" is, as H2S is not the only possible source of corrosion based cracking.
So the first question I'd ask is what they are defining as sour.
"NACE TM0177 - laboratory testing of metals for resistance to sulfide stress cracking in H2S environments" calls the kind of cracking your speaking of sulfide stress cracking. (SSC)
While others call it hydrogen induced cracking (HIC), stress corrosion cracking (SCC).
Whatever you choose to call it, the concern remains, I learn something new every day, but I don't think 5P is the right answer on this.
Regards,
Gerald