Dear All,Lot of confusion still remaining even after many reply.So I deleted my extra queries for better clarification.Seniors, please advise me on this subject.It is most urgent.Design Code – ASME B31.3Welding Code – ASME BPV SEC IXMaterial Used for PQR – P1 Group No.1 To P1 Group No.2
I have a PQR for the following material classification as per ASME BPV SEC IX
Weld Metal Impact Tested – YesPWHT done on weld metal - Yes1. Can I weld P1 Group No.1 to P1 Group No.1 based on above supporting PQR(Suppose,I am following all essential variables as per above PQR)?2. Can I weld P1 Group No.2 to P1 Group No.2 based on above supporting PQR(Suppose,I am following all essential variables as per above PQR)?Regards,LimeshOn Tue, Oct 26, 2010 at 7:36 AM, Karthik <karthik6684@yahoo.com> wrote:
From: Kathalingam Babu <kathalingam.qaqc@ppl.com.sg>
Subject: Re: Fw: [MW:7798] ASME BPV SEC IX Material Range issue
To: materials-welding@googlegroups.com
Date: Tuesday, October 26, 2010, 7:55 AM
Aneesh,Regarding the Query No.2, the actual PQR is P1 G1 to P1 G2. So is it possible to weld P2 G2 to P2 G2 as per QW 403.5?You cannot weld P2 G2 to P2 G2 with existing P1 G1 to P1 G2 qualificationRegardsK.Babu----- Original Message -----From: KarthikSent: Monday, October 25, 2010 11:31 PMSubject: Re: Fw: [MW:7793] ASME BPV SEC IX Material Range issue
Karthikeyan.SQA/QC ManagerGetabec Energy Co.,Ltd.379,Moo6,Soi8,Nikhomphatana,Rayong-21180,Thailand.Phone: 0066 38 897035-8 (Off)Fax: 0066 38 897034Hand Phone: 0066 892512282
--- On Mon, 10/25/10, aneesh <aneeshgopi22@rediffmail.com> wrote:
From: aneesh <aneeshgopi22@rediffmail.com>
Subject: Fw: [MW:0] ASME BPV SEC IX Material Range issue
To: "Materials & Welding" <materials-welding@googlegroups.com>
Date: Monday, October 25, 2010, 8:28 PM
Karthik Sir,
Regarding the Query No.2, the actual PQR is P1 G1 to P1 G2. So is it possible to weld P2 G2 to P2 G2 as per QW 403.5?
Please correct me if I am wrong.
Regards,
Aneesh
KSA
On Mon, 25 Oct 2010 11:32:50 , Karthik wrote
1. Is there any problem for welding P1 Group No.1 to P1 Group No.1 & P1 Group No.2 to P1 Group No.2 based on above PQR?
QW403.5For ferrous materials in table QW/QB-422, a procedure
qualification shall be made for each P-Number Group Number
combination of base metals, even though procedure
qualification tests have been made for each of the two
base metals welded to itself. If, however, two or more
qualification records have the same essential and supplementary
essential variables, except that the base metals
are assigned to different Group Numbers within the same
P-Number, then the combination of base metals is also
qualified. In addition, when base metals of two different
P-Number Group Number combinations are qualified using
a single test coupon, that coupon qualifies the welding of
those two P-Number Group Numbers to themselves as well
as to each other using the variables qualified.
This variable does not apply when impact testing of the
heat-affected zone is not required by other Sections.Quiery No.2
2. Can I write separate WPS (with impact test) based on above PQR for,
Material – P1 Group No. 1 to P1 Group No. 1
Material – P2 Group No. 2 to P2 Group No. 2
QW200.2 (f) Multiple WPSs With One PQR/Multiple PQRs WithOne WPS.
Several WPSs may be prepared from the dataon a single PQR (e.g., a 1G plate PQR may support WPSs
for the F, V, H, and O positions on plate or pipe within
all other essential variables). A single WPS may cover
several essential variable changes as long as a supporting
PQR exists for each essential and, when required, supplementary
essential variable [e.g., a single WPS may cover
a thickness range from
1⁄16 in. (1.5 mm) through 11⁄4 in.(32 mm) if PQRs exist for both the
1⁄16 in. (1.5 mm) through14
3
⁄16 in. (5 mm) and 3⁄16 in. (5 mm) through 11⁄4 in. (32 mm)thickness ranges].Quiery No.3Is there any problem for showing all material range in a single WPS based on above PQR?
Ie, qualified range of materials- P1 Group No. 1 & P1 Group No. 2 in the same WPS.
No problem.You can write all material range as much as possible within the P number specified in the WPSThanks & Regards,(Karthik)
Karthikeyan.SQA/QC ManagerGetabec Energy Co.,Ltd.379,Moo6,Soi8,Nikhomphatana,Rayong-21180,Thailand.Phone: 0066 38 897035-8 (Off)Fax: 0066 38 897034Hand Phone: 0066 892512282
--- On Sun, 10/24/10, limesh M <limesh78@gmail.com> wrote:
From: limesh M <limesh78@gmail.com>
Subject: [MW:7767] ASME BPV SEC IX Material Range issue
To: "Materials & Welding" <materials-welding@googlegroups.com>
Date: Sunday, October 24, 2010, 9:42 PM
Dear All,
I need your help in the following subject.Design Code – ASME B31.3
Welding Code – ASME BPV SECTION IX
I have a PQR for the following material classification as per ASME BPV SEC IX
Material – P1 Group No. 1 to P1 Group No. 2
Weld Metal Impact Tested – Yes
My query is that,
1. Is there any problem for welding P1 Group No.1 to P1 Group No.1 & P1 Group No.2 to P1 Group No.2 based on above PQR?
2. Can I write separate WPS (with impact test) based on above PQR for,
Material – P1 Group No. 1 to P1 Group No. 1
Material – P2 Group No. 2 to P2 Group No. 2
My next query is that,
Is there any problem for showing all material range in a single WPS based on above PQR?
Ie, qualified range of materials- P1 Group No. 1 & P1 Group No. 2 in the same WPS.Regards,Limesh--
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