Backing is a non-essential variable for PQR.
for your information . to the best of my knowledge.
Regards,
Ajay Kadyan
EIL
On Thu, Aug 6, 2015 at 3:09 PM, Don Under Survilliance <donsaab3@gmail.com> wrote:
Dear RiazUr understanding is absolutely correct as per QW 451.1 of sec IX. However, WPS for SMAW will be with Backing.Regards,Ajay KadyanEILOn Thu, Aug 6, 2015 at 2:01 PM, <george.dilintas@gr.bureauveritas.com> wrote:--Backing is a welders qualification essential variable. For PQR it is a nonessential one.The Base metal qualification range is the same for the 3 casesSent from my BlackBerry 10 smartphone.
--
But for SMAW single process you have to give Metal baking as the GTAW weld Metal act as metal baking. Sent from Yahoo Mail on Android
Date:Thu, 6 Aug, 2015 at 11:58 am
Subject:[MW:23271] Multiple WPS from single PQR--Dear Sir,,I have one PQR with 3 mm GTAW weld deposit and 6.5 mm SMAW deposit. Base metal thickness is 9.5 mm and impact is not required.Please correct me if any of the following is NOT correct as per Sec IX1) Combined Process (GTAW + SMAW) up to a thickness of 1.5 to 19 MM (2T)2( Single process wps of SMAW with weld metal thicjness 13 MM and qualified base metal thickness is 1.5 mm to 13 mm3) Single process WPS of GTAW with weld metal thickness of 6 MM and Qualified base metal thickness is 1.5 to 6 mmPlease help!!Riaz
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