Purple Color Code: E3 is a versatile Tungsten that can be used on AC or DC. It runs cooler than 2% Thoriated Tungsten, allowing it to maintain a longer tip life.
Blue Color Code: 2% Lanthanated Tungsten can be run on AC or DC and is known for having good arc starts, stability and erosion rates.
We switched to E3 from 2% Thoriated and we are now running each electrode longer and cooler.
Gold Color Code: 1.5% Lanthanated Tungsten is used in low amp applications on AC and DC.
Red Tungsten: 2% Thoriated Tungsten has been recommended by 58 countries for immediate cease use, because of potentially unsafe levels of radioactivity.
Brown Tungsten: Ideal for AC welding because it retains a balled tip and has a high resistance to contamination.
Gray Tungsten: Widely used in low amperage DC applications due to its ability to initiate an arc with low current.