[MW:3000] RE: 2998] ASME Sec-IX ( QW-403.5) interpretation

No, QW-403.5 applies for Group number combinations not P-Number. Always remember in Section IX to go as per tables in QW250 and associated tables. SO for eg., QW-253 for SMAW states for Group Nos, Ø Group No as per QW-403.5 and Ø P-No as per QW 403.11 are supplementary essential and essential variables respectively. This implies that for your enquiry below, separate PQRs are required for each material combination specified.

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From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Kural
Sent: 24 August 2009 04:58
To: materials-welding@googlegroups.com
Subject: [MW:2998] ASME Sec-IX ( QW-403.5) interpretation

Interpretation: Answer is yes ( for all 3 combination of basemetals) as long as other essential and supplemtary essential are unchanged.

On Sun, Aug 23, 2009 at 9:48 PM, Sukamal Naskar <sukamalbecmet@gmail.com> wrote:

Dear All,
Good Morning !!!

I have a query on ASME SEC-IX ( 2007 ED, 08 ADD )

QW-403.5 (c ) , states that " --------------- 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."

Query: If we qualify one PQR, with P-No. 1 Gr. No 2 to P-No.8 Gr.No.1 material using SMAW ( E 309MoL) process with impact testing on weld metal & both HAZ portion , does this PQR supports the following WPS combination of base metals , if all other welding variables are unchanged ?

(i) P-No. 1 Gr.No.2 to P-No. 1 Gr.No.2

(ii) P-No. 1 Gr.No.2 to P-No. 8 Gr.No.1

(iii) P-No. 8 Gr.No.1 to P-No. 8 Gr.No.1

Please give your comments,

Thanking you,

Regards,
--
Sukamal Naskar
Malaysia

TWI Ltd
Registered Number: 3859442 England
Registered Office: Granta Park, Great Abington, Cambridge, CB21 6AL, UK

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