To weld mild steel choose an american welding society classification wire such as er70s 6 which has a weld puddle that wets out nicely.
Best mig wire for sheet metal.
When the material is 18 gauge and thicker you may be able to use a 030 inch wire.
Keep the stick out short stickout of your mig wire is important when welding any type of metal but especially sheet metal.
For thinner gauge sheet metal like 18 or 20 gauge we suggest 023 6mm wire in your mig welder.
Our top pick is the inefil er70s 6 030 inch on 10 pound spool carbon steel mig solid welding wire.
Er70s 3 is typically used on clean oil free and rust free base material.
But which one is best for a particular application.
I use both in my linclone mig and the 030 in my cold wire feeder for tig work.
The most common types of mig wire for welding mild steel are er70s 3 and er70s 6.
Holding the tip too far from the surface will cause the wire to have to come out too far to touch the metal.
It s a fairly unknown brand but its wire matches lincoln and miller for wire quality and performance for feed and under the heat.
But be aware that the 023 is really soft.
Er70s 6 is the most common of the copper coated mild steel gmaw mig wires for single or multiple pass welding er70s 6 has the highest combination of manganese and silicon deoxidizers permitting higher welding currents with 100 co2 shielding gas and leaving a smoother weld bead with little to zero post weld.
These wires are designed to meet minimum tensile strength requirements of 70 000 psi.
As i will prefer to call it the best mig welder for sheet metal it uses a flux core wire and self release metal inert gas while welding preventing the oxidation of the welded area.
For mig welding sheet metal it is often recommended to use an electrode wire of the smallest diameter to prevent burn through and warping.
And yes it is easy to grind if you use argon75 25co2.
Mig welding is the preferred method for most automotive bodywork and since sheet metal is the thinnest of metals a large expensive mig unit is usually not required.
Copper plated and layer wound.
I have some of the old linde 023 and the new stiffer esab 030.
Thank you for reading these reviews of our favorite mig welding wire.
The majority of the sheet metal welding i ve done was with a 90 amp 110 volt welder.
The main reason to use a smaller diameter wire is that it takes less heat for melting and hence the metal around the weld is not heated to a very great extent.
Another vote for 023 easygrind wire in your mig.
The suncoo 140 is made of a heavy duty stainless steel body and painted black to ensure long lasting lifespan.