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BigOz · 28-01-2019, 06:59 PM

Google tells me F51 is "UNS S31803 F51" and it is "readily weldable" looking at the composition it is similar to 2205 for which information is quite widely available but mostly covers it being welded to the same grade.

Welding to austenitic stainless such as 304 I have found no references yet so if I had to go blind I'd recommend Hastelloy W or Inconel 625 as a filler as these are good mismatched or unknown steel/stainless metal fillers. The issue with those is you really don't want to pay for either of them in small diameter filler, the price is excruciatingly high and they are difficult to get in small quantities in the UK.

Just checked 1lb packs are available in the US.

28-01-2019, 06:59 PM	#30
BigOz Registered User Join Date: Feb 2009 Location: Chatham Bike: Multiple Monsters Posts: 714	Google tells me F51 is "UNS S31803 F51" and it is "readily weldable" looking at the composition it is similar to 2205 for which information is quite widely available but mostly covers it being welded to the same grade. Welding to austenitic stainless such as 304 I have found no references yet so if I had to go blind I'd recommend Hastelloy W or Inconel 625 as a filler as these are good mismatched or unknown steel/stainless metal fillers. The issue with those is you really don't want to pay for either of them in small diameter filler, the price is excruciatingly high and they are difficult to get in small quantities in the UK. Just checked 1lb packs are available in the US. __________________ Sideways is the new forward!