Is P11 to Satainless Steel(304L or 316L) welding possible?
Ganesh Mahankal
george....@gr.bureauveritas.com
Yes,
you may use 309 grade, in order to avoid hot cracking because of low FN.
If your P11 pipe has to undergo PWHT because of thickness, then you have to butter the P11 with 309, perform the PWHT and then weld it to the 316 using again the 309 filler metal.
This will help you to avoid sensitization of 316.
However, the buttered area has to undergo a corrosion test if the pipe is for wet service and clorines may be present.
For buttering you may need a specific WPS qualification (see ASME IX QW-283)
- best regards
Dr. Georgios Dilintas
Authorized Nuclear Inspector
Authorized Inspector Supervisor
API 510 Inspector
I&F REGIONAL TECHNICAL MANAGER
BUREAU VERITAS HELLAS
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Ganesh Mahankal ---20/03/2014 00:57:47--- Dear All ,--
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kannayeram gnanapandithan
Azam Mohd
Use below filler wire and electrode, Having good weldability. We have qualified PQR with this consumable:
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Vishwas Keskar Welding Manager WELDING
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