What can helium be used for?

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Hi, I have a 1/2 bottle of helium left over from blowing up ballons for my wedding. I was wondering if i can use it in any way for welding? I have a mig welder with one flowmeter and a scratch start tig gun  that i have yet to try. Is helium any good for anything like this. Thanks for any replys!!!
Reply:If it's 'balloon-grade helium', nope.  Just use it for more balloons sometime.If it's 'welding-grade helium', maybe.  Look up about shielding gases on some websites like Lincoln or Miller or ESAB.www.lincolnelectric.comwww.millerwelds.comwww.esabna.comOr look up Heli-Arc welding.  Like here http://en.wikipedia.org/wiki/Heliarc  The best laid schemes ... Gang oft agley ...
Reply:You can use helium for TIG welding...in fact a lot of older cats still call it Heli-arc because they used to use helium.'Mike
Reply:Can use it to make your voice veeeeeeerrrry High Attached Images"Any day above ground is a good day"http://www.farmersamm.com/
Reply:" Balloon helium" contains at least 18%-21% O2. This is so the little kiddies don't expire from breathing in 100% helium. FYI Don't ever use 100% welding helium to fill balloons for kids parties, as tempting as it may be. You need CO2 to drive the body's breathing reflex, and inhaling 100% HE can basically "stall" your lungs. You didn't inhale O2, so the body doesn't produce CO2 in a large enough quantity to trigger the breathing reflex. Since you don't exhale to rid your body of CO2, you don't displace the HE and draw in O2. This will continue to repeat until you are dead.The O2 in balloon helium will make it unusable for welding.
Reply:Everybody missed the point entirely! Congratulations on your wedding! Up, up and awayeeeeee in my beatiful, my beautiful balloon! City of L.A. Structural; Manual & Semi-Automatic;"Surely there is a mine for silver, and a place where gold is refined. Iron is taken from the earth, and copper is smelted from ore."Job 28:1,2Lincoln, Miller, Victor & ISV BibleDanny
Reply:"Any day above ground is a good day"http://www.farmersamm.com/
Reply:Originally Posted by ironman715You can use helium for TIG welding...in fact a lot of older cats still call it Heli-arc because they used to use helium.'Mike