Re: [MW:29770] A335 P11 can be used instead of P22

P22 has got more Creep Strength at High temp compare to P11

On Mon, 1 Jul 2019 1:24 pm pradip kumar Sil, <pradipsil@gmail.com> wrote:

Before change the material , consult with your design team

On Fri, Jun 28, 2019 at 4:29 AM Carlos Arturo Oliveros Diaz <carlosoliveros1967@hotmail.com> wrote:

Dears, 

Your requirement Install the same material that is in the material of the invoice, the approved Engineering Department must be changed before being approved, it should not be changed

Carlos Arturo Oliveros Diaz  +573023482020

            ws+584245923932

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De: materials-welding@googlegroups.com <materials-welding@googlegroups.com> en nombre de Chiranjeevi A <chiranjeevipuvvula@gmail.com>
Enviado: jueves, 27 de junio de 2019 5:03 a. m.
Para: materials-welding@googlegroups.com
Asunto: [MW:29753] A335 P11 can be used instead of P22

 

Dear all,

We have a situation that we need to weld cap (material P11) to weldolet with P22 material. Size 2" NPS. Line temp is 560C and pressure 48bar. The rating of the main header is 1500# P22 mtl. Can we weld to the following conditions P11 mtl cap to weldolet P22 mtl.

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