However this is not a code requirement (asme section I, VIII-1 etc)
From: narasimha murthy [jnm71269@gmail.com]
Sent: 08/02/2010 22:17 ZE3
To: materials-welding@googlegroups.com
Subject: Re: [MW:4249] WPS
Hi,
As most of the fittings (flanges) used are forged, and since hardness is one of the important factor to be considered during welding, and there are chances that hardness on the heat effected zone of the fittings may be higher than the required values. Hence inorder to monitor the hardness values and ensure that welding procedure qualification qualifies for the fittings Too, It is prefered to weld a welding procedure qualification between pipe to flange.
Regards
J.N.Murthy
Doha
On Mon, Feb 8, 2010 at 9:34 AM, krishna <wiqw@rediffmail.com> wrote:
Hi all,
Could one clarify the reason behind using pipe to flange for qualifcation of a welding procedure.
Why pipe to pipe is not used?
thanx
wi--
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