Metal thickness amperage settings wire size.
Best mig wire for 22 gage sheet metal.
It is recommended that a welder should use 023 or 024 inch wire for light gauge sheet metal work.
To help you to get in the hunt we have provided the handy guidelines below.
In 20 to 22 gage sheet metal your fit up gap for mig butt welding should be no less than the thickness of an unworn dime but it doesn t hurt to be stingy with your money and generous with your fit up gap.
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For thinner gauge sheet metal like 18 or 20 gauge we suggest 023 6mm wire in your mig welder.
Move the torch faster and or reduce the amp setting of the welder and the lower the wire speed.
As a rule when mig welding sheet metal never use a body filler metal that is thicker than the base metal.
Every mig welder has a sweet spot for a given material thickness in a particular alloy using a specific wire size and a certain shielding gas.
To weld mild steel choose an american welding society classification wire such as er70s 6 which has a weld puddle that wets out nicely.
When the material is 18 gauge and thicker you may be able to use a 030 inch wire.
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It is the best option for welding stainless steel.
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It s recommended to use a 023 or 024 inch wire for most light gauge sheet metal work.
Yea i know its a big number.
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Keep the stick out short stickout of your mig wire is important when welding any type of metal but especially sheet metal.
If you are burning through the metal you re not moving the torch fast enough and or your welder is set too high.
Using a thinner wire 0 30 instead of 0 35 will also help.
Now a word about that money that i mentioned specifically those nickels and dimes.
Problems with welding sheet metal.