Ag8

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I have read here you can short circut and spray weld with 92% argon and 8% Co2.  So I bit the boolit and signed a lease on a huge tank of AG8.  Now that I have used it for a while, I prefer the C/25 for short circut.  It does spray weld with about 3 more volts than needed with 98% Argon/ 2% o2.  Most of what I do is short circut, so when the tank is empty, I am going back to C/25.  I can get an 80 cf bottle of 92/8 for the spray welding when needed.Like my dad sez, when you get something that does more than one thing, you get the best of neither.  How true.DavidReal world weldin.  When I grow up I want to be a tig weldor.
Reply:Yes unless you are welding 1/4 inch and heavier there is no reason for spray.  The magic number is 20 percent for spray.  C 20 was the same price as C25 when I last rented a bottle.  I have a a bottle of C25 at home and it works for me.   Since I am working with heavy material at my job I will get frowns from management if I am not in spray...  time is money.
Reply:I thought it was 10 % for spray.  Does the short circuit not work well with ag8?Various GrindersVictor Journeyman torch200cf Acet. 250cf oxygenLincoln 175 plus/alpha2 gunLincoln v205t tigLincoln 350mpEsab 650 plasmaWhen you can get up in the morning, Its a good day.Live each day like its your last.
Reply:It varies with the power of the machine and the size of the wire you are trying to spray.  My PowCon 300SM will BARELY spray .045" with C-16.  A MM210 will probably need 98Ar/2O2, and so on.But yes, C-16 through C-25 are best for short circuit.
Reply:My invertec will spray with C/25, but I have no control over the weld.  Its too hot.  Today I was working more with the AG8.  If I set the wire speed, then the volts, Weld and turn the inductance, I got it to weld as well as C/25 with less penatration on +2.DavidReal world weldin.  When I grow up I want to be a tig weldor.
Reply:My MM210 will spray easily with C-8 and .030......and David, the abbr for Argon is Ar. Ag is the abbr for silver...fwiw....or is the AG8 the designation of the mix?