My understanding about UCS-67(a)(3) as below
Your PQR impact testing may be exempted provided
1 .Your Filler metal shall be classified by their manufacturer through impact testing at a temperature not warmer than the MDMT
But, In your case, TC has been reported as -30 Deg C. You can use these batch consumables up to -30 Deg C MDMT without impact testing ( Not for -45 Deg C MDMT) hence exemption is NOT applicable for you.
2. Additional testing beyond the scope of the SFA specification may be performed by the filler metal and/or flux manufacturer to expand their classification for a broader range of temperatures - which is self-explanatory - you need to have TC for -45 Deg C tested temperature
Also I have attached some relevant interpretation details for your reference
Official web page for all interpretation available in link below. You may find many interpretation available related to this topic.
<https://cstools.asme.org/
Dear Gent,
Non- impact tested WPS was used for some weld joint. Question :
· If welding consumable ER70S-G have been impact tested at –30°C . As per para. UCS-67(a)(3), additional testing ( Impact test ) at –45°C is a requirement when WPS ( No impact test ) used ?
From: materials-welding@googlegroups
.com [mailto:materials-welding@googlegroups.com ] On Behalf Of Ramesh
Sent: Tuesday, April 17, 2018 12:22 PM
To: materials-welding@googlegroups.com
Subject: Re: [MW:27708] impact testing of welding consumable , ASME VIII Div 1
Hi
You mean , already welded using non-impact tested WPS/PQR ?
Your PQR should have been qualified with impact testing, then only para.UCS-67(a) is applicable for u
Seems, your consumable supplier supplied ER 70S-G with guaranteed values up to minus 30 deg C only, which may not suitable for your MDMT, unless tested.
Ask supplier to replace your consumable to meet your service requirements.
As per ASME BPVC.II.C-2017 SFA-5.18/SFA-5.18M,
Impact testing requirements should have been agreed before you place order, since no requirements as per code
Either case you should have qualified WPS/PQR to meet your service requirements .
On Tue, Apr 17, 2018 at 9:25 AM, Kannayeram Gnanapandithan <kgpandithan@gmail.com> wrote:
yes
THANKS & BEST REGARDS,
KG.PANDITHAN, BE, IWE, AWS-CWI, CSWIP 3.1,
CONSULTANT-WELDING & QUALITY
Mobile no: +919940739349
On Mon, Apr 16, 2018 at 7:16 PM, Vanchinath S.A. <vanchinaths@gmail.com> wrote:
You have to qualify WPS with impact test at mdmt.
On Mon, 16 Apr 2018, 19:10 gigi, <anhtrangnghieng@gmail.com> wrote:
Dear Experts,
Please help me to clarify issue as below:
Solid rod ER70S-G have been used for weld joints of HP Flare KO Drum by using WPS V02 (GTAW/SMAW – Impact test is not applied). Certificate of welding consumable ER70S-G indicates that impact test temperature is –30°C. Minimum design metal temperature (MDMT) of HP Flare KO Drum is –45°C. Material of HP Flare KO Drum is SA-516 Gr60 normalized.
In accordance with para.UCS-67(a)(3) ASME BPVC.VIII.1-2017 , is it a requirement to perform impact test at –45°C for welding consumable ER70S-G?
Thanks
Gigi.
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