ASME BPV SEC IX Material Range issue

[limesh M]

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

[Karthik]

Hi, .As per QW403.5 you can use.Please find below the answer for your quiries marked in RED. Quiery No.1

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?

QW403.5 For 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 With One WPS. Several WPSs may be prepared from the data on 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) through 14 3 ⁄16 in. (5 mm) and 3⁄16 in. (5 mm) through 11⁄4 in. (32 mm) thickness ranges].   Quiery No.3

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.

No problem.You can write all material range as much as possible within the P number specified in the WPS 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 Sun, 10/24/10, limesh M <lime...@gmail.com> wrote:

Design Code – ASME B31.3

My query is that,

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[Kathalingam Babu]

Dear Limesh,

 

My interpretation with QW-403.5 as Below.

 

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?

You Cannot write WPS for the above combinations with existing 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

 

However, if you have the PQR Qualifications for the P1 Group No. 1 to P1 Group No. 1 & P1 Group No. 2 to P1 Group No. 2 combinations with same essential, non-essential variables,

 

Then you can write the WPS for  the P1G1 to P1 G2 , with qualifying P1G1 to P1G2  materials.

 

 

Thanks & Regards

 

K.Babu

Singapore

 

 

 

----- Original Message -----

--

[Elshan Feyzullayev]

Hi,
 
For WPS qualification you have welded P1 Group No. 1 & P1 Group No. 2 . Please note that your WPS is quilified to weld only P1 Group No. 1/2 to P1 Group No. 1/2.
 
To weld P2 Group 2 to P2 Group 2 as you required below with this WPS is not allowed as you are required to generate and qualify another WPS using P2 Group 1 or 2 materials.
 
regards,
Elshan.
Baku, Azerbaijan.
mob.: +994558640097
 

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Date: Sun, 24 Oct 2010 18:25:54 -0700
From: karth...@yahoo.com
Subject: Re: [MW:7774] ASME BPV SEC IX Material Range issue
To: material...@googlegroups.com