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Introduction of Tungsten Electrodes for TIG Welding



  Pure Tungsten, Yttriated Tungsten and Composite Electrodes  
Type of Electrode Designation Oxide Additive Impurities Content Tungsten Content Color sign
Nature Content %
Pure Tungsten WP -- -- <0.20 Balance Green
Yttriated Tungsten WY20 Y2O2 1.8-2.2 <0.20 Balance Blue
Composite -- -- 1.5-3.0 <0.20 Balance --

Characteristics:
  * Pure Tungsten , the least expensive of all tungsten, is generally used in the AC welding of aluminum and magnesium alloys.
  * Yttriated Tungsten is primarily used in military and aviation industry with narrow arc beam,high compressing strength,highest welding penetration at medium and high current.
  * The performances of Composite Electrodes in welding can be much improved by adding two or more rare earth oxides which are mutually completementary.

  Recommended Tungsten Electrodes for Various Welding Currents  
Diameter of Electrode DC (A) AC (A)
in mm Straight Polarity
( - )		 Reverse Polarity
(+)		 Unbalanced Waves Balanced Waves
0.04" 1.0 15-80   10-80 20-60
1/16" 1.6 60-150 10-18 50-120 40-100
0.079" 2.0 100-200 12-20 70-160 60-130
3/32" 2.4 150-250 15-25 80-200 80-150
1/8" 3.2 220-350 20-35 150-270 120-200
5/32" 4.0 350-500 35-50 220-350 170-260
3/16" 4.8 420-650 45-65 240-420 220-340
1/4" 6.4 600-900 65-100 360-560 250-450


  Size  
    Diameter: 0.5~12mm
    Length: 150mm, 175mm, 178mm, any other length at customer' s request.


  Package  
    The following packages available upon the demands of customers.

Package 1 Package 2 Package 3

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