A335 P11 can be used instead of P22

[Chiranjeevi A]

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.

[Carlos Arturo Oliveros Diaz]

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: material...@googlegroups.com <material...@googlegroups.com> en nombre de Chiranjeevi A <chiranjee...@gmail.com>
Enviado: jueves, 27 de junio de 2019 5:03 a. m.
Para: material...@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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[pradip kumar Sil]

Before change the material , consult with your design team

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[munee...@gmail.com]

Hi, 

If header pipe is P5A why it is connected with P4 CAP (Tie-in point)? in which P5A weldolet to be fused with P4 CAP? is that your query? 

Is this pre approved design or shortage of material? so you just inserting one what you have?

write a TQ to ''the company'' take approval with disimilar WPS.

I hope there shall not be an issue if you are proposing with your adjustment in case, but designers approval is final.

Yours

MOHAMED MUNEEB MAHABOOB

+91-786-700-444-6      TRZ - INDIA

''do that quality job - which doesn't promise your tomorrow''

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[Kannayeram Gnanapandithan]

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

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[George Dilintas]

No withou design calculations 

Στις Πέμ, 27 Ιουν 2019, 13:17 ο χρήστης Chiranjeevi A <chiranjee...@gmail.com> έγραψε:

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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