WPS & PQR can be prepared as per ASME IX provided all essential variables for process GTAW & SMAW are meeting Section IX article 3 requirements.Since this metal is not appearing in QW 422 so such unassigned metal shall be identifed in WPS/ PQR by specifcation ,type , grade or by chemical & mechnical peopeeries as per QW 424
Regards
Date: Thu, 21 Jan 2010 12:22:08 +0530
From: gopunair5343@yahoo.com
Subject: [MW:4117] Preparation of WPS
To: materials-welding@googlegroups.com
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Regards
Bharat B. Gole
Date: Thu, 21 Jan 2010 12:22:08 +0530
From: gopunair5343@yahoo.com
Subject: [MW:4117] Preparation of WPS
To: materials-welding@googlegroups.com
Dear All Recently I have qualified a WPS on 20mm thick plate of EN10025 S355J2G3 using GTAW for root pass and SMAW for subsequent passes in accordance with Lloyds Register Rule for ship building. The test piece has undergone Tansverse tensile test (2), Side bends (4) Impact test (3 Sets) at centre of the weld, fusionline and HAZ at -20deg.C, Macro and Hardness (1). PT and RT were carried out the test samples prior to drawing the destructive test samples. all the tests are passed with the required values. Record of welding for each run is prepared and maintained. consumable used are ER70-S2 and E-7018-1 Plate material properties are: Yield 357 N/MM2, UTS 541 N/MM2, El; 30% IMPACT at -20deg C; 53min, 81 Av. C;0.18, Si: 0.35 Mn ;1.4, P ;0.015, S : 0.002 Ce; 0.428 PQR as per the Lloyds rules is under preparation. My question is whether I can prepare a WPS and PQR in accordance with ASME Sec. IX using the above records. Regards Gopu/CEPL |
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