In no case. You have to comply with VIII-1
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-------- Original message --------
From: Vadivel Mahadevan <vadivelmahadev@gmail.com>
Date: 30/12/2016 05:40 (GMT+02:00)
To: Materials & Welding <materials-welding@googlegroups.com>
Subject: [MW:25854] PWHT reqmt for welds as per API 6D
I have a Groove weld joint of thickness 40mm. The standard i need to follow is API 6D..
Welding procedures qualified under ASME sec.IX without PWHT with a test coupon of 50mm thickness of material ASTM A516 gr.70..
API 6D states " PWHT shall be performed in accordance with the applicable material specification or design code"
My material specification is ASTM A516 gr. 70 and Design code is ASME Sec.VIII Div. 1
A516 standard doesnt states welding or PWHT requirement, whereas ASME sec.VIII states - thickness above 38mm PWHT is mandatory..
Can i take the material specification to justify for not performing PWHT..
Please advise
With regards and thanks
Vadivel M
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