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Re: [MW:33621] PWHT requirement _ASME B31.8

By Materials & Welding



Thanks & Regards

J.Gerald Jayakumar

0091-8838619635


On Tuesday, 25 October, 2022 at 07:50:57 am GMT+4, Manikandan J <mechmani22@gmail.com> wrote:


Dear Experts,

We have a Weld joint between Pipe to Hub as per sketch.

Run Pipe Thickness : 25.4 + 3 mm Cladding
Hub Thickness         : 31.8 + 3 mm Cladding    
Job Type : Weld joint in Piping
Code  : ASME B31.8-2020 Edn
image.png

Question 1 : For PWHT whether we need to consider Run pipe Thickness or Hub Thickness?. For set-in (Stub-in) connection, thickness of run Pipe and for set-on (Stub-on) connections, thickness of Header

Question 2 : If Run Pipe is considered for PWHT whether it includes Cladding Thk also? No

Question 2 : If Hub is considered for PWHT whether it includes Cladding Thk also ? No

Need your Views on this.

Regards,
Manikandan



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