Monday, February 8, 2016

[MW:24251] P-91 to SS Welding

Dear Expert,
We have to weld P-91 Material to 316 (SS) material with ERNiCr-3 filler Wire Socket Weld.
My question is needs to do buttering  the P-91 material if required how much layer we Need ?
During  & After buttering needs to conduct preheating & Post heating ?
During & after welding socket weld  only P-91 side or both side  we will conduct preheating +post heating + PWHT
Thanks in advance.
Regards




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