TIG steel with 100% Argon?

admin

Alright my buddy that I rent shop space from, well I can use his tools and one thing he has is a TIG that I'm going to have him get me started on and then I'm going to teach myself how to TIG with lots of practice.He has a 100% argon tank hooked up to it and he says he uses that for steel too.  Thoughts and opinions on this?  Should I switch to my 75/25 mix tank for practicing steel.
Reply:No, use the 100% argon. Basic TIG 101 says use ONLY 100% argon.DO NOT, under any circumstances, use CO2 containing mixes for TIG, regardless of material.Visit Tensaiteki.com
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Reply:Thanks for the info and the link.  Looks like I got some reading to do now and practicing this week.
Reply:books are your friend lol
Reply:Originally Posted by AntiblingAlright my buddy that I rent shop space from, well I can use his tools and one thing he has is a TIG that I'm going to have him get me started on and then I'm going to teach myself how to TIG with lots of practice.He has a 100% argon tank hooked up to it and he says he uses that for steel too.  Thoughts and opinions on this?  Should I switch to my 75/25 mix tank for practicing steel.
Reply:Yeah for carbon  and stainless I use straight argon on tig, on aluminum I use about 80%Ar 20% He