It might be possible to do sheet metal with 6013 (and I've tried it) but it's so miserable I wouldn't wish it on my worse enemy. The thick slag that forms makes it impossible to see the puddle. MIG is significantly faster, easier, and requires less cleanup with a grinder for thin metal.
For thicker stuff, I've always liked 6011, but MIG is still a little faster and easier. I know for large scale industrial use (IE ship building) flux core wire feed with a shielding gas is faster that stick, simply because the welder doesn't have to stop and get a fresh electrode.
For thicker stuff, I've always liked 6011, but MIG is still a little faster and easier. I know for large scale industrial use (IE ship building) flux core wire feed with a shielding gas is faster that stick, simply because the welder doesn't have to stop and get a fresh electrode.