上海充通大学 材料科学与工程学院 School of Materials Science and Enginecring.SJTU Background Section of Safety end FM-52M overlay 116mm1 FM-52M weld 16MnD5 80m Stainless steel (SA508Gr.3Cl.1) (or Alloy690) piping 13mm >The ferritic pressure vessel nozzle Microstructure ()th pass material is SA508Gr.3C1.1 steel )th pass >Composition compatibility with respect to physical and chemical properties is （)th pass (th pass very important for welding hence SA508 Gr.3C1.1 is often deposited with ()th pass Inconel 52M buttering th passBackground FM‐52M overlay FM‐52M weld Section of Safety end 16MnD5 Stainless steel (or Alloy690) piping (SA508Gr.3Cl.1)  The ferritic pressure vessel nozzle material is SA508Gr.3Cl.1 steel  C i i ibili i h Composition compatibility with respect to physical and chemical properties is very important for welding hence S 508 G .3C . s o te depos ted w t A508 Gr.3Cl.1 is often deposited with Inconel 52M buttering