Re: [MW:30637] IS2062E250 WPS FOR IS2062E350

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!

El jue., 19 mar. 2020 a las 8:25, Charles Jacob (<charlesvj@gmail.com>) escribió:

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 

On Thu, Mar 19, 2020, 4:53 PM Somnath Ashtakar <s.ashtakar@gmail.com> wrote:

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

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