For two side welded, the base material thickness 38.1mm therefore you should choose the note 2 as below and the CVN sets shall be taken by removed from depth of between 1/4t and 1/2t from weld surface. It mean that the CVN set shall be taken between from 9.55mm from root to 19.05mm from weld surface.
Note "(2) For two sided welds in base metal thicknesses greater than 3/4in. (19 mm), specimen sets shall be removed from a depth of between 1/4t and 1/2t from each weld surface"
Best Regards,
Vu Duc Thuan
Mobile No: +(84) 983 017 936
Email Add: dthuan117@gmail.com
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From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of venkat guru
Sent: Monday, December 21, 2015 10:40 PM
To: materials-welding@googlegroups.com
Subject: [MW:23987] UG84.6 IMPACT SPECIMEN CLARIFICATION
Hi sir,
This is venkatesan from singapore.
Could you please clarify on the requirements of ASME Section Viii Div.1 Edition 2013 Section UG84.6?
PQR Base material : SA516 Gr.70 of thickness 38.1mm
Deposited weld metal like GTAW-4mm+SMAW-15mm+SAW-19.1mm
Question: HAZ impact specimen suppose has to be taken based on UG84.6, definitely GTAW process is difficult to cover.
Do we have to take impact for each process or just follow UG84.6 table?
Simply means, Impact test specimen will take for PQR/ PTC as per ASME VIII. Is based on thickness or process?
Thanks
Venkatesan
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