GMAW of Mild Steel

By - Date 05-10-2000 15:49

In welding 18GA to 1/2" plate are there any advantages to using 90/10 Argon/CO2 rather than 75/25 Argon/CO2?

By - Date 05-12-2000 09:12

Plenty,
I guess it depends on the position your welding in. You'll probably reduce spatter considerably. In addition to that, you'll be able to reduce voltage also.

By - Date 05-12-2000 18:03

Thanks for the reply. Please clarify if there are any problems welding out of position using 90/10 Argon/CO2 or any other disadvantages?

By - Date 05-14-2000 11:19

By out of position do you mean vertical? You should be able to weld vertical down without any problems... but I would cut and etch some samples just to be sure. The 1/2" plate is pretty heavy for that.
PWC