Hi,
Note 3 details as Impact testing is not required if Design Minimum temperature is below -29°C but at or above -101°C ie between -29° C to 101°C not above 101°C.
Also please refer below paragraph Impact test is not required for your case as per B 31.3 since your material is austenitic stainless steel.
Vaithiyanathan,
Oman
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of prasad benjamin
Sent: 26 August 2010 09:38
To: materials-welding@googlegroups.com
Subject: Re: [MW:6728] Charpy impact Test qulaification for an existing PQR
Refer Table 323.2.2 Note 3
Impact testing is not required if the design minimum temperature is
BELOW -29*C Is it correct? I confused in this. Can anybody explain
From: Bathula Raghuram (Mumbai - PIPING) <R.Bathula@ticb.com>
To: "materials-welding@googlegroups.com" <materials-welding@googlegroups.com>
Sent: Thursday, 26 August 2010 12:00:33
Subject: RE: [MW:6725] Charpy impact Test qulaification for an existing PQR
SS316L doesn't require CVN impact at -70 °C acc to B31.3 unless contract specifically request for it, in addition refer note 6 of table A-1 and note 3 of table 323.2.2
From: Larry [mailto:quality@unieng.com.au]
Sent: Thursday, August 26, 2010 9:13 AM
To: materials-welding@googlegroups.com
Subject: RE: [MW:6722] Charpy impact Test qulaification for an existing PQR
Hi there,
Material: SS 316L
Thickness range: 4.8mm to 25.4mm
Code of Construction: ASME B31.3
Cheers,
Larry Zarate
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Bathula Raghuram (Mumbai - PIPING)
Sent: Thursday, 26 August 2010 1:03 PM
To: 'materials-welding@googlegroups.com'
Subject: RE: [MW:6722] Charpy impact Test qulaification for an existing PQR
what is your material, job thickness range and code of construction?
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Larry
Sent: Thursday, August 26, 2010 5:31 AM
To: materials-welding@googlegroups.com
Subject: [MW:6716] Charpy Test
Hi There,
We have an existing WPS, The existing WPS doesn’t have a cold service specification, and we would like to do a test coupon from that WPS and have it charpy tested, so we can revised the existing WPS. Now the requirement of the client is -70 degrees Celsius. Is that alright or do we have to do another PQR? Code is ASME IX.
Thank you,
Larry Zarate
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