For stainless sheet metal one size lower than you would use for carbon steel seems to help because typically less amperage is used on stainless steel than on carbon steel.
Tig welding stainless steel filler rod chart.
6 common arc welding electrodes used for welding mild steel.
The next chart below is similar to the one above but it gives you more detail on the six top arc welding rods.
Filler metal is selected for a specific application.
These factors include but are not limited to the type of steel type of weld loading on the welded joint applicable codes level of preheat level of restraint position of welding condition of the steel and service conditions.
Welding stainless steel can be tricky because it is very good at retaining heat and this can lead to problems such as warping embrittlement and rust.
The amps required to weld stainless are about 10 lower than the amps used for mild steel.
Coating welding positions current and tensile strength for each arc welding rod.
Stainless is less thermally conductive than mild steel so heat does not flow away from the weld quite so quickly.
Tig welding is most often used for welding thin sections of stainless steel and other non ferrous metals like aluminum magnesium and copper alloys.
The following tig mig classifications for wire and rod can be used on sheet metal high pressure pipe and tubing.
Er308 and er308l one of the most common welding rods it s the choice for welding 304 stainless steel which is widely used in manufacturing as well as 200 series and other 300 series steels.
How do you keep your welding rods dry er347 stainless steel tig welding rod welding electrode chart and selection eastwood tig 200 ac dc welder for nihonweld stainless steel welding filler metal selection chartstick electrode and welding basicstig welding temperature chart yubadwelding stainless steel rightfiller metals for welding stainless steel ldx2101 s32205 2304 254smo 654smo.
The larger filler rod cools the weld pool more than the smaller rod so you might add about 5 amps if using 1 6mm filler rod.
For aluminum the same rule applies to sheet metal roughly.
At low amperage a large rod chills the puddle a lot and can cause a very irregular bead.
Since then he has used the gas tungsten arc welding gtaw aka tig process to produce an impressive collection of eagles dragons dinosaurs and more.