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https://www.eng-tips.com/viewthread.cfm?qid=398865
Can you please elaborate the B31.3 2012 Clause 331.1.3 b).? 1. On what thickness we need to PWHT the pipe supports? 2. If the pipe joints need to be PWHT, the supports welded to them shall also be PWHT?
https://app.aws.org/forum/topic_show.pl?tid=4123
Aug 28, 2003 · The only advice I have for you is to PWHT that support, and if possible, DO NOT repeat the same engineering practice on any of the other supports!!! G. S. Crisi has spoken the word on pipe supports so, It's best for you to adhere to his advice!!! I apologize for being so blunt but, I strongly feel that it's necessary in this case!!!
Piping Technology manufactures high-quality custom engineered pipe supports, spring hangers, pipe clamps, pipe shoes, pipe expansion joints, insulated supports, slide …
https://www.whatispiping.com/category/pwht
A post weld heat treatment or PWHT is a controlled process that involves reheating the metal below its lower critical transformation temperature, following a welding process. The material is then held at the elevated temperature for predetermined period of time to alleviate residual stresses, increase the strength, increase or decrease the ...
https://materials-welding.blogspot.com/2019/07/mw29799-pwht-exemption-for-pipe.html
Jul 08, 2019 · [MW:29799] PWHT exemption for Pipe supports for amine service Dear Experts, The Primary supports are welded to pipe ( Carbon steel) and PWHT was not done for amine service. All the butt welds have undergone PWHT. PWHT issue was noticed after completion of commissioning.
https://pip.org/docs/default-source/practices-documents/plsc0001.pdf?sfvrsn=108cca9e_0
Fabrication and Examination . of ASME B31.8 Metallic Piping. ... 4.1.3 Pipe support systems shall be in accordance with . PIP PLC00005. ... protected from the heat of welding, or Post Weld Heat Treatment (PWHT), in accordance with the valve manufacturer’s instructions.
http://www.ognition.com/1041/all-carbon-steel-piping-systems-require-pwht-for-service-h2s
Do all Carbon Steel piping systems require PWHT for service in H2S? asked Feb 28, 2015 in Material by lulopez (2,220 points) h2s. ... 2015 by TPham (5,010 points) All equipment and piping in carbon and low alloy steel should be subject to a post weld heat treatment (PWHT). ... Welded pipe can be considered on a case by case basis.
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