[MW:9457] Heat treatment in a Piping Joint as per ASME B31.3

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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