TIG Welding Tungsten Electrode Selection

Many of our customers are often looking for a good reference for which electrode type to choose while welding different metals. Although thoriated electrodes tend to be the favorite for a one-size-fits-most welding approach, some electrodes are better for particular metal combinations. Additionally, many welders have their own preferences that fit their unique situations. We’ve done our best to put together a reference that you can use to select the best type for your specific work.

 

Type

AC/DC

Usage

1.5% Lanthanated (Gold)

 

DC

The gold lanthanated tungsten electrodes contain less lanthanum than their blue counterparts and are best used in DC applications.  They are best for welds with titanium alloys, copper alloys, nickel alloys, and non-corroding steel.

2% Lanthanated (Blue)

 

 

 

AC & DC

The blue lanthanated electrodes are popular due to the relative ease of striking an arc and lower amperage required.  They perform exceptionally well in both AC & DC applications, and are a popular general use electrode.  Blue electrodes are effective for welding aluminum alloys, magnesium alloys, nickel alloys, copper alloys, titanium alloys, low-alloyed steels, and non-corroding steels.

Ceriated (Grey)

 

 

DC

Grey ceriated electrodes are popular due to their extreme ease of striking an arc with lower amperages, and their extraordinary performance with regard to DC welding applications.  They perform best with titanium alloys, copper alloys, magnesium alloys, aluminum alloys, nickel alloys, non-corroding steels, and low-alloyed steels.

Thoriated (Red)

 

 

DC

The red thoriated type is America’s favorite electrode for a reason.  Extremely long lasting and highly durable, these electrodes are a staple in DC welding applications.  These red electrodes are best for copper alloys, nickel alloys, titanium alloys, and non-corroding steels.

Pure Tungsten (Green)

 

 

AC

The original green pure tungsten electrode contains at least 99.5% tungsten and delivers all of the properties classically associated with tungsten – superior conductivity, durability, and performance.  Green electrodes are perfect for weld projects containing magnesium alloys or aluminum alloys.