Your TIG gun (torch) can have various parts fitted, enabling it to weld a variety of materials and sized items.
Some parts are literally consumables, they get eaten up during the welding process. Other parts are consumables, but they last a lot longer and only get replaced when worn. These parts are often interchangeable, dependant on what you’re welding.
Tungsten electrodes come in a variety of types and sizes dependant on what you’re welding: Ceriated 2% (Gray) – Sometimes Orange:Thoriated 1% (Yellow):Thoriated 2% (Red):Lanthanated 1% (Black):Lanthanated 1.5% (Gold):Lanthanated 2% (Blue):Pure (Green):Rare Earth (Purple):Zirconiated 0.8% (White) […]