Minimum Temperature limit for SA-516-70N
Minimum Temperature limit for SA-516-70N
(OP)
Hi,
I am working on a PV having MDMT -58 degree F in wet sour enviroment, is SA-516-70 N suitable for this application? What is the minimun temp limit for SA-516-70N and where to find?
Regards
I am working on a PV having MDMT -58 degree F in wet sour enviroment, is SA-516-70 N suitable for this application? What is the minimun temp limit for SA-516-70N and where to find?
Regards





RE: Minimum Temperature limit for SA-516-70N
It sounds like you don't have much experience with this material and wet sour environments so I would recommend you obtain the assistance of someone who is knowledgeable and can assist with developing your vessel requirements.
RE: Minimum Temperature limit for SA-516-70N
Additionally there clauses for reduction in MDMT mentioned in UCS-66 and UCS-68(c) of ASME Sec Viii Div 1.
As pointed rightly by rneil you can take assistance of experienced vessel design engineer for the job.
RE: Minimum Temperature limit for SA-516-70N
In any case consider also what say rneill for sour service requirements.
Consider that when you must have an impact test there are also many requirements that you have to consider: production coupon, PQR, WPS with these material, etc.
I hope these information could help you.
RE: Minimum Temperature limit for SA-516-70N
RE: Minimum Temperature limit for SA-516-70N
Arcelor Mittal, formerly Bethlem Lukens, has knowledgeable staff.
RE: Minimum Temperature limit for SA-516-70N
RE: Minimum Temperature limit for SA-516-70N
Steve Jones
Materials & Corrosion Engineer
http://www.oilandgaspeople.com/cv/11499664
http://www.linkedin.com/pub/8/83b/b04
RE: Minimum Temperature limit for SA-516-70N
you will get the values.
RE: Minimum Temperature limit for SA-516-70N
Temp range in ASME II Table A1 is upto -20 F only.
Regards
RE: Minimum Temperature limit for SA-516-70N
http://
Sounds as if you might be in their neighbourhood.
RE: Minimum Temperature limit for SA-516-70N
It can be done, but you will need to shop for MTRs, not just for PQR purposes but for the production steel, because production tests blocks will be subsequently required. Lower carbon, fine grain size, and Charpy numbers comfortably above the minimum are desirable.
Getting results in the weld is not difficult, it is usually the HAZ that presents the greatest difficulty.