Re: [MW:9470] Heat treatment in a Piping Joint as per ASME B31.3

Dear Yoganandhan,

 

I suppose the material is CS (P=1)

In that case, You are right, the PWHT will not be required as per the para 331.1.3. para 328.5.4 gives the governing thickness. If the thickness through weld is less than 40 mm, you need not carry out the PWHT.

 

I hope this clarifies,

 

With best regards,

 

Prasad JOSHI

Linde

 

On Tue, Jan 25, 2011 at 1:46 PM, yoga nandhan <yoganandhan@gmail.com> wrote:

Can anyone please clarify, whether heat treatment is required in a piping branch connection with joint thickness of 17 mm Header pipe with a connecting 22 mm thik weldolet(at joint).

As per Clause 328.5.4, i understood Heat treatment is not required

Please Clarify.

Thanks in advance

Yoganandhan.P

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