ASME Sec. IX, QW-424.1 Qualified P number of base metal

[Kwangju Moon]

Dear team,

I would like to get the advice for belows;

Subject: QW-424.1 (ASME BPV Sec IX) Base metals used for procedure qualification

Back Ground: A PQR was qualified from P-No. 5A metal to P-No. 5A with performing impact test at -29 degree C. The WPS will be used to the weld joint which is required an impact test.

Question: Can I write the WPS for P-No. 5A metal to P-No. 4A regardless group No of P 4A?

[John Henning]

NO, not if impacts are required for production welding.  See QW-403.5 (b)

 

(b) for ferrous materials, a base metal listed in the same

P‐Number Group Number in Table QW/QB-422 as the

base metal to be used in production welding

 

John A. Henning

Welding & Materials

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[george....@gr.bureauveritas.com]

Group no is an supplementary essential variable

best regards

Dr. Georgios Dilintas

Authorized Nuclear Inspector
Authorized Inspector Supervisor
API 510 Inspector

I&F REGIONAL TECHNICAL MANAGER
BUREAU VERITAS HELLAS

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"John Henning" ---11/12/2013 18:46:06---NO, not if impacts are required for production welding.  See QW-403.5 (b)

Dear team,

 

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[Muhammed Ibrahim PK]

Refer QW 424.1

Thanks & Regards
Muhammed Ibrahim PK