[MW:3505] Re: WPS/PQR, Range Qualified

Hi Prem, I have seen it, thanks. I was referring to the generic interpretation, that is what we agreed to when ASME people were involved in Code stamp certification for a client of mine. In the sketch, we said refer to the fab drawing and in sizes - all. It was accepted by the ASME Team Leader. So, you see, I am talking from practical point of view, which more imp, I guess. Regards, Shashank Vagal --- On Tue, 13/10/09, PREM SHANKARDUTT NAUTIYAL <prem_nautiyal@rediffmail.com> wrote: From: PREM SHANKARDUTT NAUTIYAL <prem_nautiyal@rediffmail.com> Subject: [MW:3504] Re: WPS/PQR, Range Qualified To: nach_sam@yahoo.com Cc: materials-welding@googlegroups.com Date: Tuesday, 13 October, 2009, 8:28 PM Hello Shashank Pl. refer QW 403.6 for "T" limits impact for base metals which states that: "the min. base metal thickness qualified is the thickness of the test coupon T or 16mm,whichever is less.However where T is less than 6mm the min. thickness qualified is 0.5T.. Regards Prem Nautiyal On Mon, 12 Oct 2009 20:52:00 +0530 wrote >Prem,You need impact test...? Why? The question can be answered as it is, see below yours. It is a generic question. But still, I think a WPS is qualified to weld all if within its parameters. Imposition is on weld metal deposits (>12.5 mm per pass). WQT will decide what sizes a welder can weld.SV--- On Sun, 11/10/09, PREM SHANKARDUTT NAUTIYAL wrote:From: PREM SHANKARDUTT NAUTIYAL Subject: [MW:3482] Re: WPS/PQR, Range QualifiedTo: raghurambathula@gmail.comCc: materials-welding@googlegroups.comDate: Sunday, 11 October, 2009, 7:24 PMHi What i interpret from the query is that the thickness of test coupon welded for PQR i.e while qualifying the WPS was 15mm. Hence as per ASME SecIX, QW-451:which states the Procedure qualification thickness limits, the range of thickness "T" of base metal qualified will be 5mm to 30mm (2T). Actually the question is not very clear and imp. details like impact requirements are missing ... All are requested to pose clear,detailed to the point queries so that they can get correct answers / solutions. Regards Prem Nautiyal Cell:9820313278 On Sun, 11 Oct 2009 14:06:21 +0530 wrote >thickness limits are defined in QW 403.6 and 403.8,diameteris not a restriction for procedure but thickness limits are.to weld 20mm thickness your PQR test coupon thickness shall beat least10mm On Sun, Oct 11, 2009 at 10:53 AM, Shashank Vagal wrote: Hi Group Members,Please see the following and advise.Shashank Vagal Query: dear every one, i have this problem i need to know the thickness range or pipes diameter range for the wps in which standard i think its in asme sec 9 but where ??? for exmple if i have wps for thickness 15 is it cover the 20 mm waiting answer please regards My Reply: A WPS is a guideline to ensure joint integrity as proven by PQR + applicable mech tests + NDT. It is intended for all job sizes once the welding technique used proves itself in these tests. The sizes etc come in to picture by qualifying welder on test coupons of a given size as per your job requirements. ASME IX stipulates weld metal deposit and not job size. Please ref to QW 450 - 461. Now, send attachments up to 25MB with Yahoo! India Mail. Learn how PREM S NAUTIYAL CELL : 9820313278 Keep up with people you care about with Yahoo! India Mail. Learn how PREM S NAUTIYAL CELL : 9820313278