IMPACT TEST REQUIREMENT

[balaji srinivasan]

Dear All,

As per ASME SEC-IX   change in material Group is Supplementry  essential variable (403.5)

based on above i need your experience  If iam qualified PQR p1 group-1 to p1 group-2 tow different group welded it self so the  qualfied range will be p1 group1 and p1 group 2.

or only this PQR is qualified group 1 to group-2 qualified.

also please advice i need to qualify group 1 separate and group 2 separate PQR.

[nithind...@gmail.com]

P1 G1 to P1 G2 qualifies P1 G1 to P1 G2, P1 G2 to P1 G2 and P1 G1 to P1 G1. Hope your query is addressed.

Sent from my iPhone

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[Mohammed Rafiuddin]

PQR on P1Gr1 to P1Gr2 qualifies welding P1Gr1 to P1Gr2 only and NOT welding to themselves i.e ( P1Gr.1 To P1Gr1 Or P1Gr2 to P1Gr2)

Refer ASME interpretation IX-92-70 on the same subject.I could not find downlodable copy.Try to search on internet.

Thanks

Mohammed

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[Raghuram Bathula]

Mohammed: interpretation IX-92-70 does not address this situation

Balaji : You can use this PQR for welding P1 G1 to P1 G2, P1 G2 to P1 G2 and P1 G1 to P1 G1

[George Dilintas]

No, if you read carefully the last sentence of 5th paragaphe of QW-403.5 the combination in the same test coupon qualifies the group numbers to themselves.

However if the application Code Section (VIII-1, VIII-2) does not require HAZ impact testing you dont have to worry about this variable

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Dr. Georgios Dilintas,

Dipl. Ing. In Aeronautic and Space Engineering

Ph.D in Mechanics of Solids - Computational Mechanics

A.I.S, A.N.I, IRCA Lead Auditor

Welding, Stress Analysis, Corrosion, QA/QC, Failure Analysis, Risk Analysis