Thursday, November 7, 2024

[MW:35300] Re: SA335 P91 to SA106Gr.B Dissimilar Material Welding Procedure

this could be part of improper design or RF Pad support welding(fillet)? 

and this question already earlier answered in the group.

this kind of joint can be further welded or joint by weld flange at each and then bolted with insulated bolt., 

however service temperature variation may affect both joint thermal expansion that need to add by metal expansion joint at CS side.

pl do not joint directly by welding. Or else use transition spool as mentioned above if you have multiple WPS's/PQR's to support these welding.

On Monday, September 16, 2024 at 10:37:39 AM UTC+3 Vijay Kumar wrote:
Dear Experts,

I need SA335 P91 to SA106Gr.B Dissimilar Material Welding Procedure with some reference codes. 

Please share 

Thanks 
Vijayakumar

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