Why doesn't NR-212 come in .035?

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The title says it all....-RuarkLincoln 3200HDHobart Stickmate LX235TWECO Fabricator 211i
Reply:Imma guess because it can weld up to 3/4" Plate.

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Reply:

Originally Posted by Broccoli1

Imma guess because it can weld up to 3/4" Plate.


Reply:Imma guess not for multipass welding?  Well.that aint the answer.  Says for single or multipass.Last edited by tapwelder; 07-26-2021 at 06:23 PM.
Reply:

Originally Posted by Ruark

So if you were welding, say, 1/4" plate, there wouldn't be any difference between 212 and 211?
Reply:Might not be able to get enough flux in the wire in .035" size or maybe there's not enough demand for it in .035".
Reply:

Originally Posted by tapwelder

Imma guess not for multipass welding?  Well.that aint the answer.  Says for single or multipass.
Reply:

Originally Posted by Welder Dave

Might not be able to get enough flux in the wire in .035" size or maybe there's not enough demand for it in .035".
Reply:

Originally Posted by Ruark

That kinda ties into why I was asking. NR-211 .035 is supposed to be good for up to 5/16" regardless of number of passes.  .045 is really too big for thinner stuff. If I wanted to weld 1/8" metal with .035 wire, I'd HAVE to use NR-211 because NR212 doesn't come that size.
Reply:

Originally Posted by ttoks

For welding 1/8th inch NR211 should be fine, the problem with E71T-11 (NR211) and E71T-G (NR212) is excessive aluminium in the weld from heavy welds, for a smaller weld it's not a problem as most of the aluminium ends up in the slag, but larger the run the more ends up in the weld metal making it brittle and it builds up weather you do one larger run or run multiple passes, 211 has more aluminium in it than 212 which is why 212 is rated for thicker material, it's also why NR232 and NR233 don't have a thickness limitation, it's got about a third of the aluminium content of the -11 or -G wire.
Reply:

Originally Posted by Ruark

Interesting answer, thanks.  So what's the purpose of the aluminum in NR211/212?
Reply:You will find the smaller size wire has fewer types.I use E71T-11 0.030" for my welding. Dave

Originally Posted by Ruark

The title says it all....
Reply:Somebody must stand on 2 stacked chair with a tiny funnel pour the flux into the wire.
Reply:

Originally Posted by tapwelder

Somebody must stand on 2 stacked chair with a tiny funnel pour the flux into the wire.
Reply:I think aluminum is added to give higher deposition rates but could be a deoxidizer too. E70-T4 has more aluminum in it and is a high production wire. It's the wire that caused Lincoln to put seismic rating on specific wires.