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TUNGSTEN ELECTRODE
Usual size
Model |
Dia(mm) |
Length(mm) |
Composition |
Welding Material |
WT10 WT20 WT30 WT40 |
1.0 |
150 or 175 |
ThO2 |
Carbon steel Stainless steel Copper Aluminum |
1.6 |
150 or 175 |
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2.0 |
150 or 175 |
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2.4 |
150 or 175 |
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3.0 |
150 or 175 |
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3.2 |
150 or 175 |
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4.0 |
150 or 175 |
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5.0 |
150 or 175 |
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6.0 |
150 or 175 |
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8.0 |
150 or 175 |
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10.0 |
150 or 175 |
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12.0 |
150 or 175 |
Cerium-Tungsten Electrodes
Trade mark |
Added |
Impurity |
Other |
Tungsten |
Electric |
Color |
WC20 |
CeO2 |
1.80 - 2.20% |
<0.20% |
The rest |
2.7 - 2.8 |
Grey |
Lanthanated Tungsten Electrodes
Trade mark |
Added |
Impurity |
Other |
Tungsten |
Electric |
Color |
WL10 |
La2O3 |
0.80 - 1.20% |
<0.20% |
The rest |
2.6 - 2.7 |
Black |
WL15 |
La2O3 |
1.30 - 1.70% |
<0.20% |
The rest |
2.8 - 3.0 |
Yellow |
WL20 |
La2O3 |
1.80 - 2.20% |
<0.20% |
The rest |
2.8 - 3.2 |
Sky blue |
Zirconiated Tungsten Electrodes
Trade mark |
Added |
Impurity quantity |
Other |
Tungsten |
Electric |
Color sign |
WZ3 |
ZrO2 |
0.20 - 0.40% |
<0.20% |
The rest |
2.5 - 3.0 |
Brown |
WZ8 |
ZrO2 |
0.70 - 0.90% |
<0.20% |
The rest |
2.5 - 3.0 |
White |
Thoriated tungsten
Trade mark |
ThO2 Content(%) |
Color sign |
WT10 |
0.90 - 1.20 |
Primary |
WT20 |
1.80 - 2.20 |
Red |
WT30 |
2.80 - 3.20 |
Purple |
WT40 |
3.80 - 4.20 |
Orange Primary |
Pure Tungsten Electrodes
Electrode Name |
Trade |
Added impurity |
Impurity quantity |
Other impurities |
Tungsten |
Electric discharged power |
Color sign |
Pure Tungsten Electrode |
WP |
-- |
-- |
<0.20% |
The rest |
4.5 |
Green |
Yttrium-Tungsten Electrode |
WY20 |
YO2 |
1.80 - 2.20% |
<0.20% |
The rest |
2.0 - 3.9 |
Blue |
Composite Electrode |
WRex |
ReOx |
1.00 - 4.00% |
<0.20% |
The rest |
2.45 - 3.1 |
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