You can just weld the additional test copon using the existing wps parameters
John du Plessis
Technology Manager
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From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Larry
Sent: 26 August 2010 02:01 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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