Normally, in applications where there refer to ASME, they require "forged" flanges.
I haven't seen such flanges being used in installations which are designed based on ASME standards.
In API applications, there are instances where they allow plate flanges (API 650 for storage tanks) but not in ASME.
Moreover, you will probably need solution annealing treatment. Regards
On Thu, Mar 6, 2014 at 9:36 PM, <george.dilintas@gr.bureauveritas.com> wrote:
Check section VIII-1 appendix 2 and appendix 20 or section VIII-2 part 4.16
Best regards
Dr Georgios Dilintas
Authorized Nuclear Inspector
Authorized Inspector Supervisor
HBS Regional Technical Manager
From: Cyriac Dominic [cyriacd@gmail.com]
Sent: 03/06/2014 12:27 PM ZE3
To: materials-welding@googlegroups.com
Subject: [MW:20241] Fabrication of ASA 300# rating flanges from plates.This message contains confidential information. To know more, please click on the following link: http://disclaimer.bureauveritas.comDear Experts,--We want to make some flanges from plates(12"NB, 16"NB,and 20"NB) The rating of 300 psi. We are thinking of making it in 4 segments(90 degree each) We are taking 100% U.T for the joints.But not stress relieving of flanges .before machining.Anywhere in ASME code it is mentioned about the requirements such a type of fabrication?And also the equipments are working under temperature 110 degree to 260 degree centigrade. I hope somebody can give some advice regarding this matter.Thanking you,Cyriac Dominic
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