material selection 2

[rezapayman]

Dear Friends
I like to know is there any refrences for material selection of pressure vessel.I want to select material for high H2S services and project spec do not mention it clearly!

 

[gr2vessels]

Peyman,
Happy you asked the question. Yes, there is a number of references for material selection for pressure vessels operating in H2S service. The most relevant is the NACE MR0175 and NACE MR0103 and their equivalent ISO standards.
These standards also refer to other complementing standards, helping you to make the most correct selection of materials for your application.
Come back if you need additional clarifications,
gr2vessels

 

[rezapayman]

gr2vessels
Thanks for your reply.Is there any refrences which be more simple and applicable for mechanical engineer guys?

 

[gr2vessels]

Are you serious? Because I don't think the issue of materials corrosion in a potential lethal service should be compromised with alternative 'references', other than the codes and standards regulating the engineering of equipment in H2S service.
The standard gives you indications for the correct selection of the material, suitable for your particular process.
However, first you have to know if your equipment will operate in the upstream (production) or in refinery environment. For the production environment, the applicable standard is NACE MR0175, but for the refinery environment is the NACE MR0103. The description you provided (high H2S) indicates the need for NACE MR0175 regulations. Just remember that for H2S service, the design and fabrication must follow the NACE requirements, not only the material selection, but welding, post weld heat treatment, etc.
There is no cheap way out, unless you are prepared to go to jail for killing people affected by H2S when the vessel will fail. I believe that you don't have the full understanding of the lethal service (high H2S) engineering, but in court this will not save your bacon.
Cheers,
gr2vessels

 

[boo1]

NACE MR0175/ISO 15156 gives requirements and recommendations for the selection and qualification of carbon and low-alloy steels, corrosion-resistant alloys, and other alloys for service in equipment used in oil and natural gas production and natural gas treatment plants in H2S-containing environments.

http://web.nace.org/departments/store/product.aspx?id={E826035F-A056-489C-A434-8524168DD95E}

NACE Standard MR0175-2002, “Sulfide Stress Cracking Resistant Metallic Materials for Oilfield Equipment”, covers requirements for materials resistant to sulfide stress cracking (SSC) in sour oilfield environments.

A partial list of References H2S pressure vessel materials and material H2S PV issues are:
1. ISO 15156/ NACE MR0175 Petroleum and Natural Gas Industries - Materials for Use in H2S- Containing Environments in Oil and Gas Production. Published by ISO, Dec 2003

2. EFC16 "Guidelines On Materials Requirements For Carbon And Low Alloy Steels For H2S Containing Environments In Oil And Gas Production", published by The Institute of Materials, London 1995

3. EFC17 "Corrosion Resistant Alloys For Oil And Gas Production: Guidelines On General Requirements and Test Methods For H2S Service.", published by The Institute of Materials, London 1996

4. NACE MR 0103: Materials Resistant to Sulfide Stress Cracking in Corrosive Petroleum Refining Environments (2003).

5. Wet H2S Cracking – A Refiner’s Experience with HIC-Resistant Steels. free download at:

http://web.nace.org/Departments/Store/product.aspx?id=e242984b-56bd-4f80-9670-aa9f9c051efb

6. “Hydrogen- Induced Cracking and Stress- Oriented Hydrogen Induced Cracking in Hydrogen Sulfide Services (HIC/ SOHIC- H2S)” in API Publication 581, Risk- Based Inspection Base Resource Document, 1st Edition, May 2000.

7. “Carbonate Cracking” in API Publication 581, Risk- Based Inspection Base Resource Document, 1st Edition, May 2000.

8. NACE RP 0472: Methods and Controls to Prevent In- Service Environmental Cracking of Carbon Steel Weldments in Corrosive Petroleum Refining Environments (2010).

http://web.nace.org/Departments/Store/product.aspx?id=b90f79d8-4ed7-4bb8-a968-4ea275fec3f9

9. NACE RP 0296: Guidelines for Detection, Repair, and Mitigation of Cracking of Existing Petroleum Refinery Pressure Vessels in Wet H2S Environments (2004). free at:

http://web.nace.org/Departments/Store/product.aspx?id=9cf0ff8a-a310-44dc-b835-d5478d7f38de

10. J. H. Kmetz and D.J. Truax, Carbonate Stress Corrosion Cracking of Carbon Steel in Refinery FCC Main Fractionator Overhead Systems, NACE paper # 2006.

11. R.R. Petrie and E.M. Moore, Jr. Determining the Suitability of Existing Pipelines and Producing Facilities for Wet South Service, Materials Performance 28, 6 (June 1989), pp. 59-65.

12. Singh, V, "Performance of Austenitic Stainless Steels in Wet Sour Gas - Parts 1 and 2 Materials Performance, August and September 2004

13. ASME B&PV Code

14. OSHA Instruction PUB 8-1.5 and SECTION IV: CHAPTER 3

15. National Board Inspection Code, ANSI/NB 23

16. 30 CFR 250.490 - Hydrogen sulfide.

17. “Sulfide Stress Cracking” in API Publication 581, Risk- Based Inspection Base Resource Document, 1st Edition, May 2000.

 

[MikeMet]

Also look at NORSOK Standard on Materials Selection.