[MW:3001] Re: 2998] ASME Sec-IX ( QW-403.5) interpretation

Interpretation:

1X-89-75

IX-89-75,M -89-76

Subject: Section

Ix, QW-403.5, .QW-403.11, and QW-424

Date Issued: September 20, 1990

File: BC90-443

Question (1):

A procedure qualification using the SMAW process in a V-groove joint has been

qualified with acceptable bends, tensiles and charpy V-notch impact specimens, using P-No.

1 Gr.

No.

2 material welded to a P-No. 3 Gr. No. 3 material. Does the procedure qualification support

the welding

of P-No. 1 Gr. No. 2 material together when notch toughness tests are required?

Reply (1): No.

Question

(2): Does the procedure qualification support the welding of P-No. 1 Gr. No. 2

material to P-No.

3 Gr. No. 3 material?

Reply

(2): Yes.

Question

(5): Does the procedure qualification support the welding of P-No. 3 Gr. No. 3

material together?

Reply

(3): No.

 

On Sun, Aug 23, 2009 at 10:10 PM, Sayee Raghunathan <Sayee.Raghunathan@twi.co.uk> wrote:

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











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