Dear All, Sorry for my mistake in Interpretation and suggestion on this quiery. According to Mr.John,he was correct with QW406.3. Thanks & regards, (karthik)
Karthikeyan.S QA/QC Manager Getabec Energy Co.,Ltd. 379,Moo6,Soi8,Nikhomphatana, Rayong-21180, Thailand. Phone: 0066 38 897035-8 (Off) Fax: 0066 38 897034 Hand Phone: 0066 892512282
--- On Wed, 9/15/10, limesh M <limesh78@gmail.com> wrote:
From: limesh M <limesh78@gmail.com>
Subject: Re: [MW:7015] RE: 6999] ASME SEC IX Code Issue
To: materials-welding@googlegroups.com
Date: Wednesday, September 15, 2010, 10:59 AM
Dear Karthik Sir, My query was based on ASME SEC IX QW 406.3,I think you mistakenly taken it as QW 403.6 Regards, Limesh
On Tue, Sep 14, 2010 at 9:15 PM, Karthik <karthik6684@yahoo.com> wrote: | Hi, I dont find where is the interpass temp.and all in QW403.6? Pls.Find below the Extraction from ASME Sec.IX-2007 QW-403.6 The minimum base metal thickness qualified is the thickness of the test coupon T or 5⁄8 in. (16 mm), whichever is less. However, where T is less than 1⁄4 in. (6 mm), the minimum thickness qualified is 1⁄2T. This limitation does not apply when a WPS is qualified with a PWHT above the upper transformation temperature or when an austenitic material is solution annealed after welding. Regarding Interpass Temp.Pls.find below the extraction from code. QW-406.8 An increase in the maximum interpass temperature of more than 100°F (56°C) from that achieved on the test coupon and recorded on the PQR. The interpass temperature shall be measured and recorded separately for each tempering weld bead layer and, if any, for the surface weld bead layer(s). The WPS shall specify the maximum interpass temperature limits for each tempering bead layer separately and for the surfacing weld bead layer(s), if any. Hi limesh, As he pointed out for interpass temp.your wps shall be with interpass temp 140+56 =196 Thanks & Regards, (Karthik)
Karthikeyan.S QA/QC Manager Getabec Energy Co.,Ltd. 379,Moo6,Soi8,Nikhomphatana, Rayong-21180, Thailand. Phone: 0066 38 897035-8 (Off) Fax: 0066 38 897034 Hand Phone: 0066 892512282
--- On Tue, 9/14/10, John Henning <jhenning@deltak.com> wrote:
From: John Henning <jhenning@deltak.com>
Subject: [MW:7004] RE: 6999] ASME SEC IX Code Issue Date: Tuesday, September 14, 2010, 9:48 PM No - Per QW-406.3 WPS maximum permitted is PQR value + 55C. Therefore WPS IP max = 140C + 55C = 195C Design Code: ASME B31.3 Welding Code: ASME SEC IX I have a Low temperature carbon steel impact tested PQR with a PWHT range of 600⁰±10⁰C.Is this condition giving an exemption for me on QW406.3 to prepare a WPS with maximum interpass temperature of 200⁰C. Maximum interpass temperature observed during specimen welding: 140⁰C
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