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RE: [MW:6725] Charpy impact Test qulaification for an existing PQR

By Materials & Welding
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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