PWHT requirement _ASME B31.8

[Manikandan J]

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

Question 1 : For PWHT whether we need to consider Run pipe Thickness or Hub Thickness?.

Question 2 : If Run Pipe is considered for PWHT whether it includes Cladding Thk also?

Question 2 : If Hub is considered for PWHT whether it includes Cladding Thk also ?

Need your Views on this.

Regards,

Manikandan

[james gerald]

Thanks & Regards

J.Gerald Jayakumar

0091-8838619635

On Tuesday, 25 October, 2022 at 07:50:57 am GMT+4, Manikandan J <mechm...@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

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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[Mohd Siraj]

whats material?

[Manikandan J]

Material

Pipe : API 5L X60

Hub : A694 Gr.F60

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