Marking of material in H2S service
Marking of material in H2S service
(OP)
In our specification to the tank supplier we specified "No marking shall be on the process side of material" as the tank is in Sour Service. However we have internals that will have to be identifiable in contact with the liquid with no unexposed sections that can be stamped.
Is low stress stamping acceptable, or is this a no go? What other marking methods are options in this environment?
Is low stress stamping acceptable, or is this a no go? What other marking methods are options in this environment?





RE: Marking of material in H2S service
What is the material?
If absolutely needed I would look at acid etching.
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Plymouth Tube
RE: Marking of material in H2S service
Regards,
Mike
RE: Marking of material in H2S service
Steve Jones
Materials & Corrosion Engineer
http://www.linkedin.com/pub/8/83b/b04
All answers are personal opinions only and are in no way connected with any employer.
RE: Marking of material in H2S service
However, I check one of the big US oil company spec, quote " No punch marks on work lines shall be done on the internal process shell face" unquote.
Most of the specs are talking about pressure parts, hardly talking about what to do with non-pressure parts.
You shall talk to the person who created that spec, he/she shall be able to tell you the story and advise you the best alternatives.