Question about Argon, just out of curiosity.

StickPigBBQ

Since most of you know that I have a bottle of 100% Argon from the stainless steel topics, I was curious if I can use it as a shielding gas for mild steel? I am going to buy a separate 75/25 bottle next week but I was just curious if it is an acceptable gas to use for regular mild steel.

Thanks,

Josh
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killswitch505 · Posted: Mon Dec 26 11 7:46 pm Post subject:

yep i've done it in a pinch
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StickPigBBQ · Posted: Mon Dec 26 11 7:50 pm Post subject:

Thanks Killswitch, have you noticed any downsides to the weld beads from using pure Argon? Like maybe taller welds or lack of penetration or anything like that compared to using a C25 mix?

thanks
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Offset Smoker Build....In the planning stages.....
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Catman · Posted: Mon Dec 26 11 8:58 pm Post subject:

Even though you can use pure argon on mild steel, you will have more build-up and less penetration. Also, the arc will wander a bit causing some roughness in the weld. It is a definite no-no for critical structures (such as aircraft frames) but for a cooker, it will do in a pinch like Killswitch said.
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Blazer · Posted: Mon Dec 26 11 10:46 pm Post subject:

I've been using 98% argon 2% ox., it runs hot and lays flat. I think it would be good for use on a 110 volt welder that needs a little more heat.

killswitch505 · Posted: Mon Dec 26 11 11:14 pm Post subject:

StickPigBBQ · Posted: Thu Dec 29 11 1:08 pm Post subject:

Well I gave it a shot just to see how it would work with the pure Argon cause I was curious and Catman hit the nail on the head. So its off to the store for a C25 bottle!
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A proud member of da WHO DAT NATION!!!
NB Offset Smoker-Modified
"The Mustang"- http://www.thesmokering.com/forum/viewtopic.php?t=54065

Offset Smoker Build....In the planning stages.....
......if you cant drink it, SMOKE IT!