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ASME Sec. IX P No.'s & S No.'s
3

ASME Sec. IX P No.'s & S No.'s

ASME Sec. IX P No.'s & S No.'s

(OP)
When qualifiying welding procedures to ASME Sec. IX can materials listed with S No.'s only (Example A572-50 S-1) be grouped with corresponding P No.'s? QW 420.2&3 addresses this issue but seems to me to be unclear. Any assistance will be apprecaiated.

RE: ASME Sec. IX P No.'s & S No.'s

Read the second paragraph of QW-420.2 three or four times.

Ps will qualify other Ps and Ss in the same group. Ss will qualify other Ss but not Ps in the same group.

RE: ASME Sec. IX P No.'s & S No.'s

One thing in addition to DeanC's comments, QW420.2 is a non mandatory appendix. So many a time, unless you are fabricating a stamped vessel, S Number to P Number restirctions by and large depend on the client's interpretation.

Thanks and regards
Sayee Prasad R
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RE: ASME Sec. IX P No.'s & S No.'s

Yudha03
When Qualification WPS ( Pipe ),Position 1.G , but actual condition qualification procedure only taken partial welding cause " Large Diameter Pipe " and for the sample of mechanical test was taken as per QW-463.1(a),the result mechanical test is acceptable. We would like to know our WPS / PQR still acceptable by ASME code or not, any assistance will be appreciated.

Best Regards

Yudha_Titis

RE: ASME Sec. IX P No.'s & S No.'s

(OP)
Thanks for your input. I was afraid of what I would find by asking this question. You both have confirmed my feelings on the matter and reinforced my recomendations to management. Now I guess I best get busy with my PQR's. Thanks Again.

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