i dont rember who told me, but when i was looking around trying to figure out what i need to set up my syncrowave 200, someone told me to get my argon 75/25. now that i got everythnig to start tigging i am trying to figure this out. went on a welding forum and was told i am supposed to have 100% pure argon. this sux cuz i got a huge cylender of 75/25. so now i am reading around here and i seen that people are using the 75/25 for migging. is this true? if so it wont be a total waste cuz i might be getting a miller tig also

 

you need 100% argon..

 

Return the bottle and tell them what's up. You need the straight argon.

 

Yes, mixed gasses are used for MIG, but pure argon is needed for TIG or migging aluminum.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by beepy &raquo;</TD></TR><TR><TD CLASS="quote">Yes, mixed gasses are used for MIG, but pure argon is needed for TIG or migging aluminum.</TD></TR></TABLE>

sup beepy

what about tiging ss and mild?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RACEPAK &raquo;</TD></TR><TR><TD CLASS="quote">


sup beepy

what about tiging ss and mild?</TD></TR></TABLE>

Yeah you need straight argon for that too. You can use helium mixes as well. If you start getting an active gas in there like co2 it welds like ****. Just try it and you'll see. On mild it hisses, pops and sparks and leaves kind of a residue like a 75/25 wire weld.

Funny thing. I think I was watching biker build off once and they were tigging an oil can and it was hissing and popping like a mother ******. I laughed....a lot because I KNOW they just hooked up their mig bottle and said expletive it lets roll bitches!! I think it was the one where they poured beer into the can to test for leaks and then chugged it lol.

 

well, ill just order another bottle. the cylender i got was one of the huge ones, but it was kinda a back room deal so i cant really exchange it, but its kinda cool cuz i might be getting a millermatic anyways

 

I have tried TIGing w/ that mix by accident and it's horrible. one step up from not turning on the gas at all.

 

Some welding suppliers will refill a 75/25 tank with 100% Argon. So even if you have that bottle you can always just empty it and refill it for $30.

I try to stay away from AirGas and PraxAir because they bitch if a bottle has rust on it or is due for hydro in less than 2 years. So I just look for the small mom-and-pop welding stores.

 

yep c25 is not going to work for tigging

 

i've heard of hydrogen / argon mixes but then I just remember i'm not welding space shuttle parts, for deep space missions. I keep it simple and just run 100% argon.