Thoughts on argon for steel?

[robert]

That is true for spray you need more argon and less c02.

[robrob]

My understanding is MIG Aluminum welding requires a flux core wire so I don't think the gas mixture really matters. A bottle of C-25 should be all you need.

[junes]

As far as I know there is no suh thing as flux core aluminum wire. I mig aluminum with argon.

[robrob]

Oh well, never mind then--I know you know a lot more about welding than I do. I'm not sure what I was thinking of.

[junes]

Its all good it would be cool if they came up with a tubular aluminum wire.

[Bikespot]

Its all good it would be cool if they came up with a tubular aluminum wire.

I think there is one , im not to sure on that. If not that would be a cool idea. Same with SS.

[Kiwimike]

CO2 is great for Mig welding steel and as previously mentioned is a lot cheaper than Argon, however if you are doing a lot of continuous runs then CO2 will freeze up a normal gas regulator. If you are doing a lot of CO2 welding then you will need a heated regulator.
CO2/Argon Mix (Corgon) is a better way to go, as the regulator won't freeze up with extended use.

[Dave Trunks]

Straight Argon can be used for non critical work but the CO2 in the mixed gas is what helps the weld to penetrate.......the CO2 also helps with edge wetting and smoothing out the weld bead. Dave

[Gadget]

Straight Argon can be used for non critical work but the CO2 in the mixed gas is what helps the weld to penetrate.......the CO2 also helps with edge wetting and smoothing out the weld bead. Dave

Hi Dave and welcome to the forum. We like pictures here so be sure to include some showing your work. Also, keep an eye out for the next contest here. The odds of winning a great new Longevity machine are very good. Please post some information about yourself in the introduce yourself section so we can get to know you.
Dan

[tomsign]

Henrym nailed it
75/25 for mig
Tomsign