Material Selection Road Map
Material Selection Road Map
(OP)
What is the Road Map of the material selection in in wet CO2 environments ?
For Example :
How can I assess the severity of the environment?
From what corrosion rate shall I consider other solutions as corrosion inhibitors, ph stabilization or even using CRA?
For Example :
How can I assess the severity of the environment?
From what corrosion rate shall I consider other solutions as corrosion inhibitors, ph stabilization or even using CRA?





RE: Material Selection Road Map
To set you out on the path of your epic quest, you can start here:
CO2 Corrosion Search
Here is a magic shield that will be of great benefit:
IFE Guidelines
The righteous choice between the paths of corrosion control or of wondrous materials is oftentimes clouded by the demons of unswaying belief in the total accuracy of the prediction model, optimistic expectations of operational competence, and parsimonious management. Their navigation is not for the inexperienced, or the faint hearted. Fortunately, there are many brave, ancient and wise Knights of the Corrosion Discipline who may be hired to help you navigate these treacherous paths.
Steve Jones
Corrosion Management Consultant
http://www.linkedin.com/pub/8/83b/b04
All answers are personal opinions only and are in no way connected with any employer.
RE: Material Selection Road Map
Me thinks you have been playing too many x-box games.
RE: Material Selection Road Map
Steve Jones
Corrosion Management Consultant
http://www.linkedin.com/pub/8/83b/b04
All answers are personal opinions only and are in no way connected with any employer.
RE: Material Selection Road Map
I think that this isn't a simple issue to deal with. I hope that I can at least elaborate a simple road map that guides mechanical engineers in choosing their materials at my company because they select materials in a non-procedural way but by experience and comparison with similar projects.
RE: Material Selection Road Map
This statement alone is what needs to be captured on paper so perhaps you or your company can develop an internal guideline. Experience alone is of tremendous value.
RE: Material Selection Road Map
See if the attachment provides any help - it's about as "road-mappy" as I get.
Steve Jones
Corrosion Management Consultant
http://www.linkedin.com/pub/8/83b/b04
All answers are personal opinions only and are in no way connected with any employer.
RE: Material Selection Road Map
ppCO2 < 3psi - no measures required
3psi < ppCO2 < 10psi - corrosion management / mitigation by corrosion inhibitors
ppCO2 > 10psi - use CRA materials
Got this from an old Brown and Root design standard, in the days when things were still simple.
In the OpCo I used to work for, all piping and fittings DN50 (2inch) and less in wet hydrocarbons service is made out of SS duplex 2205 (UNS31803) as a minimum.
You may probably have far more sophisticated tools at hand; see if this helps to tell day from night.
RE: Material Selection Road Map
Steve Jones
Corrosion Management Consultant
http://www.linkedin.com/pub/8/83b/b04
All answers are personal opinions only and are in no way connected with any employer.
RE: Material Selection Road Map
Thank you Steve, that's very useful.