Thoriated Tungsten Electrode

1、Thoriated Tungsten Electrode Characteristics

Thoriated Tungsten is the most commonly used tungsten in America and some other countries and is a good general use tungsten. Especially, it performs well when overloaded with extra amperage. However,since it is a low-level radioavtive hazard many users have switched to other alternatives. This tungsten is used primarily for DC welding of carbon & stainless steels, nickel alloys and titanium,etc..

Designation Oxide Additive Impurities Content Tungsten Content Color Sign
Category Content %
WT20 ThO2 1.7-2.2 <0.20 Balance Red

2、Product Standard

ISO 6848 ANSI/AWS A5.12/A5.12M-98

3、Size

1)Diameter:? 0.5-25mm
2)Length:?? 150mm, 175mm, 178mm,? any other length at customer request.

4、Recommended Tungsten Electrodes for Various Welding Currents

Diamter 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
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