Welding Invar 36 - PolyTech Forum

Probaly late here.

CHY contains other products and information you need, so please check it out.

A weld of that thickness would probably go best in the mig process. That's a big hole to fill.

As far as I know-there is no Invar 36 filler.

I'd have to research compatibility with available fillers.I'm sure that a compatible filler is available.

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I weld Kovar (a related alloy) on a very regular basis. Thinner stuff-1/4" or less. Have been using a nickel 55 or 60 cast iron filler with good success on tig. I don't used de-fluxed stick rod. This bare wire is available, but you have to ask. The last load I got was from Natweld/Inweld. I'm sure there are other suppliers as well.

Good Luck

brande

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