Spool Bronze

Steel welding wire spool mystery?

I bought a used wire welder with a spool already installed, with a regulator, but no gas cylinder, and indications from the guy who sold it was that he wasn’t using gas with it. The wire, though, is .025″ and my pretty strong impression is that wire that small couldn’t be flux core. The wire is off-color — kind of brownish — however, and I wonder if that could possibly be a flux coating. ? Doesn’t look like rust and it’s certainly not bronze or brass wire. I can’t contact the guy who sold it any more … don’t seem to have his contact info (wife deleted emails and he’s not in the phone book). The sticker on the side of the spool isn’t helpful at all. Anyone hazard a guess as to what material this is and whether or not I can use it without gas? Thanks for hints!!

Is the any info on the label? An AWS or ASME specification or class? Maybe an SFA number? Something might be helpful to us.

From your description of the wire, I would venture a guess that it is a solid wire meant to weld mild steel. The brownish color could be the copper coating that has started to oxidize. And yes, I find it hard to believe that he was using the wire without a shielding gas. But if you could let us know what info was on the tag we might be able to offer more info.

Good luck.

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