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  1. Tenoa

    MACHINING AFTER HYDROTEST

    It is not likely that this will be allowed, especially if you have had any PWHT performed!
  2. Tenoa

    SS vs. CS in sour gas service

    Thank you both for your insights, they were very helpful.
  3. Tenoa

    SS vs. CS in sour gas service

    I have been reading through another post - HIC, SSC, SCC, HCL and HTHA - and I see Nelson Curves are mentioned. Do these apply to H2S? They seem to refer to the partial pressure of hydrogen instead of hydrogen sulfide. We do not have a copy of API 941 in-house, but may be able to porvide...
  4. Tenoa

    SS vs. CS in sour gas service

    Thank you for the reply, that was at least a step in the right direction. Do you know the justification for those who choose to use carbon steel all round? Is it just water condensate that could cause a potential problem, or could these same problems arise if operating conditions place you...
  5. Tenoa

    SS vs. CS in sour gas service

    I have been looking at the NACE MR0175 / ISO 15156-1 standard and trying to determine the discharge material requirement for a sour gas compressor skid at 5000psig, with up to 10 mol% H2S present. The standard is very detailed in it's description of allowable carbon steel and stainless steel...

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