IS2062E250 WPS FOR IS2062E350

[Somnath Ashtakar]

Hi,

We have qualified WPS as per ASME SEC IX for material IS 2062 E250 material , now we want to weld material IS2062 E350 material, Can we use the same WPS ?

as IS 2062 E250 - Tensile strength - 410 MPA & 

IS2062 E350 - Tensile strength - 490 MPA

Please suggest your views.. Urgent.

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Thanks and Regards,
Somnath Ashtakar

[Charles Jacob]

Dear, 

If you have qualified a base metal in a particular tensile strength, with a PNo. Then a metal with the same P No but higher tensile is not possible to weld. Your WPS cannot guarantee that weld is safe at higher tensile strengths. 

Hope this helps

Regards, 

Charles V Jacob 

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[José Juan Jiménez Alejandro]

IS 2062 E250 - Tensile strength - 410 MPA & 

IS2062 E350 - Tensile strength - 490 MPA

The criterion is not only the Tensile strength, but also the metallurgical similarity, that is the reason why the P Numbers exist, but These materials do not have P Numbers assigned, see Table QW-422.

Saludos!

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Ing. José Juan Jiménez Alejandro

Independent Consultant in Parts

and Pressure Equipment

SSI-TPI

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[Kannayeram Gnanapandithan]

E350 is unassigned. U can not use the same WPS which u are using for E250 which has got assigned Pno 1. Filler material will match E350. 

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[George Dilintas]

IS2062 E250 is assigned to P-No1, Grp No 1 (see Non Mandatory App. D of the Section IX)

However, there is no P-No assigned to E350, so  you need a new PQR

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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