Hi Syam,
What's your project requirement?? What're the design and the operating conditions and the process fluids involved.
Typically if the process fluid involves, CO2, H2S then 316L could be an option also for such condensers, subject to the fact it is acceptable by the project design specications. However if the service environment involves chlorides then Duplex SA 790 UNS31803 would certainly be a better material.
Advice would be to get the acceptance from the client.
Below is the generic warning from API spec for such units.
Thanks.
Pradip Goswami,P.Eng.IWE
Welding & Metallurgical Specialist & Consultant
Ontario,Canada.
Email-pgoswami@sympatico.ca,
API SPECIFICATION 12GDU- Specification for Glycol-Type Gas Dehydration Units
Pressure retaining components exposed to corrosive gases such as carbon dioxide and hydrogen sulfide shall meet the requirements as specified by the purchaser
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of mohd shah
Sent: Sunday, July 10, 2011 10:21 AM
To: materials-welding@googlegroups.com
Subject: [MW:11657] Change material SA 790 UNS31803 TO SS 316
| Dear Expert, The vendor are fabricating Glycol Reflux Condenser. They want to change coil material SA790 UNS31803 to SS 316. Is there any problem if they change the material? If yes why? Thanks and Best Regards, Syam. |
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
No comments:
Post a Comment