Max.Base metal thickness qualified
Hrushikesh Sangamnerkar
Dear experts,
I have a P8 # P43 PQR.
Joint design = Single V
Base metal thickness for P8 = 40mm and for P43 = 20mm.
What should be the Max.Base metal thickness range qualified for such joint?
Regards,
Hrushikesh H Sangamnerkar
S.Mohammed
Your query is exactly as same as the below interpretation.
Background: A procedure qualification test coupon using the same or different P-Number materials and consisting of two plates of different thicknesses, T2 = 1-1/2” thick and T1 = 1” thick welded with a single process. The thicknesses meet on the same plane with neither plate being tapered. The joint is welded in accordance with the sketch below.
(Figure can not be attached; left side plate 1" and right side plate 1.5", not tapered only beveled ends)
Question (2): Does this test coupon qualify the WPS for both base metals for a thickness range of 3/16” to 8” on both sides of the weld joint?
Reply (2): Yes.
Question (3): Does this test coupon qualify the WPS for both base metals of different P Numbers for a thickness range of 3/16” to 8”?
Reply (3): No. QW-202.4 requires both base metal thicknesses be in accordance with QW-451.1. Base metal T1 is qualified 3/16” to 2” and base metal T2 is qualified 3/16” to 8”, except as permitted by QW-202.4(b)(1).
QW 202.4 interpretations :
Interpretation: IX-95-12
Subject: QW-202.4, Dissimilar Base Metal Thicknesses
Date Issued: March 17, 1995
File No: 95-027
Question: Does QW-202.4 include butt joints and corner joints when joining dissimilar base metal thicknesses when prepared with a groove?
Reply: Yes.
Interpretation: IX-98-20R
Subject: QW-202.4(b), Dissimilar Base Metal Thickness
Date Issued: June 8, 2000
File No: 99-539
Question: When welding a corner joint with dissimilar base metal thickness, the thickness of both members must be within the qualified thickness range of the WPS(s) being used. How is the thickness for the thicker member defined in sketches (a), (b) and (c) below?
Reply: For sketch (a), the thicker of T or ts. For sketch (b), the thicker of T or ts. For sketch (c), the thicker of flange a or hub b.
(Figures can not be attached)
george....@gr.bureauveritas.com
The qualified thickness are as follows:
Thinner member: from 5 mm to 40 mm
Thicker member: no limitation
Please refer to QW-202.4 in Section IX of ASME BPVC
best regards
Dr. Georgios Dilintas
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Hrushikesh Sangamnerkar ---05/05/2015 15:21:53---Dear experts, I have a P8 # P43 PQR.
Regards,
Hrushikesh H Sangamnerkar
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On Tue, 5/5/15, S.Mohammed <mohd...@gmail.com> wrote:
Subject: [MW:23210] Max.Base metal thickness qualified
To: material...@googlegroups.com
Date: Tuesday, 5 May, 2015, 10:01 PM
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Mohit Aggarwal
Are you qualifying PQR with taper on one side of higher thickness i.e. 40 mm.
Best Regards,
Mohit Aggarwal.
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Hrushikesh Sangamnerkar
No I already hv this PQR
Hrushikesh H Sangamnerkar
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