Dec 3, 2020 #1 Jeff Ding Aerospace Dec 3, 2020 1 Is post weld heat treat required when welding schedule 80 carbon steel pipe?
Dec 3, 2020 #2 MJCronin Mechanical Apr 9, 2001 5,097 There are many responses on "eng-tips" to PWHT requirements for piping.. https://www.eng-tips.com/viewthread.cfm?qid=365438https://www.eng-tips.com/viewthread.cfm?qid=389287https://www.eng-tips.com/viewthread.cfm?qid=381691 The need for Piping PWHT is determined by your selected "Code of Record", materials selected, wall thickness etc. etc. (you have selected a piping code that you are building to... right ?) MJCronin Sr. Process Engineer Upvote 0 Downvote
There are many responses on "eng-tips" to PWHT requirements for piping.. https://www.eng-tips.com/viewthread.cfm?qid=365438https://www.eng-tips.com/viewthread.cfm?qid=389287https://www.eng-tips.com/viewthread.cfm?qid=381691 The need for Piping PWHT is determined by your selected "Code of Record", materials selected, wall thickness etc. etc. (you have selected a piping code that you are building to... right ?) MJCronin Sr. Process Engineer
Dec 3, 2020 #3 SWComposites Aerospace Nov 6, 2000 3,615 Depends what the pipe is used for. Upvote 0 Downvote
Dec 4, 2020 #4 0707 Petroleum Jun 25, 2001 3,403 if your service is reach amine, sour water or caustic, maybe it will be required PWHT. luis Upvote 0 Downvote
Dec 6, 2020 #5 Dhurjati Sen Materials Dec 14, 2017 982 PWHT would do no harm, if done as per B 31.3 or any other code. However, could be unnecessary hence wasteful. DHURJATI SEN Upvote 0 Downvote
PWHT would do no harm, if done as per B 31.3 or any other code. However, could be unnecessary hence wasteful. DHURJATI SEN
