Thursday, August 26, 2010

RE: [MW:6735] Charpy impact Test qulaification for an existing PQR

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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