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Pure Tungsten,Yttriated Tungsten and Composite Electrodes
Introduce: Description:
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.Type of Electrode
Designation
Oxide Additive
Impurities Content
Tungsten Content
Color sign
Category
Content %
Pure Tungsten
WP
--
--
<0.20
Balance
Green
Yttriated Tungsten
WY20
Y2O3
1.8-2.2
<0.20
Balance
Blue
Composite
--
--
1.5-3.0
<0.20
Balance
--
Product Standard:
ISO 6848 ANSI/AWS A5.12/A5.12M-98
Size:
Diameter: 0.5-25mm
Length: 150mm, 175mm, 178mm, any other length at customer request.
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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