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RE: Fw: [MW:7820] ASME BPV SEC IX Material Range issue

By Materials & Welding

Yes, you can

"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".

 

 

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of limesh M
Sent: Tuesday, October 26, 2010 3:11 PM
To: materials-welding@googlegroups.com
Subject: Re: Fw: [MW:7819] ASME BPV SEC IX Material Range issue

 

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 B31.3
Welding Code – ASME BPV SEC IX
I have a PQR for the following material classification as per ASME BPV SEC IX
Material Used for PQR – P1 Group No.1 To P1 Group No.2
Weld Metal Impact Tested – Yes

PWHT done on weld metal - Yes

 

1. 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,

 

 

 

Limesh

 

 

 

 

On Tue, Oct 26, 2010 at 7:36 AM, Karthik <karthik6684@yahoo.com> wrote:

Hi,

As per QW250 Change in group number is a supplementary essential variable.If Impact test or PWHT ec.,is not applicable then P1 G1  to P1  G2. WPS can be used to weld P1 G2 to P1 G2.

Please note that there is no P2 in ASME.

 

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, 10/26/10, Kathalingam Babu <kathalingam.qaqc@ppl.com.sg> 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 qualification

 

Regards

 

K.Babu

 

 

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

From: Karthik

Sent: Monday, October 25, 2010 11:31 PM

Subject: Re: Fw: [MW:7793] ASME BPV SEC IX Material Range issue

 

Hi,

Yes. Can write if impact test is not applicable.

 

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 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

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 <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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