Re: [MW:30969] Procedure Qualification With Dissimilar Base Materials

Hi,
If toughness test (Impact test) is not required by your construction code, you can weld any combination of group materials in the same P number.
If Impact test required by your construction code, you follow QW403.5 and as explained by trail mail below by other member explained.

Thanks& Regards,

 

(Karthik)

Karthikeyan.S

M: +66-892512282
E-mail : karthik6684@yahoo.com

On Wednesday, June 3, 2020, 10:32:03 AM GMT+7, 'wilfred kojo' via Materials & Welding <materials-welding@googlegroups.com> wrote:

Gents,

No, PQR using P1G1 to P1G1 did not qualify P1G1 to P1G2

but PQR using P1G1 to P1G2 qualify P1G1 to P1G1,  P1G2 to P1G2 and P1G1 to P1G2.

Again, for example two PQRs using PIG1 to P1G1 and P1G2 to P1G2 qualify P1G1 to P1G2 as long as both essential and supplementary essential variables of the both PQRs are the same.  

On Tuesday, 2 June 2020, 13:07:24 GMT+1, Karthick Baskar <karthi1289@gmail.com> wrote:

Dear All;

Please explain me the para 403.5 of ASME IX , for P & group no qualification.

If we do the PQT with P1 G1 to P1 G1 is that qualify for P1 G1 to P1 G2 material is that so?
or is it valid when impact test is done ?
I m not able to interpreted the code para properly

Thanks In Advance.....

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