|
Less wire stick-out=more penetration (counter intuitive, I know).
So if you are just tacking you can go to 3/8" or so. Longer welds should be run at 5/8" - 3/4" stickout.
But you should not do long welds, as per Mr. Walkers directive.
If you are using gas you want mainly argon. CO2 is too hot.
|