Thoriated Tungsten electrodes are the most commonly used tungsten material, Thoria is low-level radioactive material, but it is was the first to display a significant improvement over pure tungsten.
Application : Thoriated tungsten electrodes are generally used for DC electrode negative or straight polarity applications such as carbon & stainless steels, nickel alloys and titanium, as they operate well even when overload with extra amperage, and then improve the performance of welding.Detail inforamtion.
|
Designation
|
Composition Dioxide
|
Oxide in%
|
Impurities Content %
|
Tungsten
Content%
|
Color Mark
|
|
WL10
|
LA2O3
|
0.80~1.20
|
<0.2
|
Remainder
|
tungsten
|
|
WL15
|
LA2O3
|
1.30~1.70
|
<0.2
|
Remainder
|
tungsten
|
|
WL20
|
LA2O3
|
1.80~2.20
|
<0.2
|
Remainder
|
tungsten
|
|
WT20
|
ThO2
|
1.70~2.20
|
<0.2
|
Remainder
|
tungsten
|
|
WC20
|
CeO2
|
1.80~2.20
|
<0.2
|
Remainder
|
tungsten
|
|
WZr3
|
ZrO2
|
0.20~0.40
|
<0.2
|
Remainder
|
tungsten
|
|
WZr8
|
ZrO2
|
0.70~0.90
|
<0.2
|
Remainder
|
tungsten
|
|
WP
|
¡ª¡ª
|
¡ª¡ª
|
<0.2
|
99.8
|
tungsten
|
|
WY20
|
Y2O3
|
1.80~2.20%
|
<0.2
|
Remainder
|
tungsten
|
|
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