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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Thoriated Tungsten Electrode