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Re: [MW:35555] SS FILLER

By Materials & Welding
UNS 312254 falls under the category of Super Austenitic stainless steel and commonly know as 6Mo alloy or 254SMO.

The Filler wire you are using ER 2594 is not correct and it  is for Super Duplex stainless steel with alloying ellements on lower side.

The correct Filler metal to weld UNS 31254 is  ERNicrMo3 for which the F-No is 43 and hence you cannot use the existing WPS.

Thanks & Regards

J.Gerald Jayakumar

0091-8838619635



On Wednesday 23 April, 2025 at 04:58:05 pm IST, Elavarasan Mech <elavarasan1861994@gmail.com> wrote:


Dear All 
 Please clarify below 

we have qualified WPS( P No 8 GR 1 To P NO 8 GR 1). Filler metal Er 316l ( Fno:6)
 
In our current project UNS S31254 ( PNO 8 Gr No 4)
We useing a filler wire ER2594 (Fno 6 )


Can we use above wps for this project with filler metal ER2594  Please guide me 
CODE ASME SEC IX 





regards 
ELAVARASAN

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