Wolfram Electrode (W-Electrode) Description:
The high melting point of tungsten renders it a suitable material for electrodes. Pure tungsten electrodes and alternative formulations are available from SAM. Tungsten is a rare metallic element utilised in the manufacture of tungsten arc welding electrodes (GTAW).
Specifications of SAM Tungsten Electrode:
Article Name
|
Added Impurities (%)
|
Other Impurities (%)
|
Electrical Discharge Energy (eV)
|
Colour Code
|
pure tungsten electrode
|
---
|
< 0.2%
|
4.5 eV
|
Green
|
Thorium-doped tungsten electrode
|
ThO2 (0.90% ~ 1.20%)
|
< 0.2%
|
2.0 eV ~ 3.0 eV
|
Yellow
|
ThO2 (1.80% ~ 2.20%)
|
< 0.2%
|
2.0 eV ~ 3.0 eV
|
Red
|
ThO2 (2.80% ~ 3.20%)
|
< 0.2%
|
2.0 eV ~ 3.0 eV
|
Violet
|
ThO2 (3.80% ~ 4.20%)
|
< 0.2%
|
2.0 eV ~ 3.0 eV
|
Orange
|
Ceramic tungsten electrode
|
CeO2 (1.80% ~ 2.20%)
|
< 0.2%
|
2.7 eV ~ 2.8 eV
|
Grey
|
Lanthanated tungsten electrode
|
La2O3 (0.80% ~ 1.20%)
|
< 0.2%
|
2.8 eV ~ 3.2 eV
|
Black
|
La2O3 (1.30% ~ 1.70%)
|
< 0.2%
|
2.8 eV ~ 3.0 eV
|
Golden
|
La2O3 (1.80% ~ 2.20%)
|
< 0.2%
|
2.6 eV ~ 2.7 eV
|
Azure Blue
|
Yttrium-doped tungsten electrode
|
Y2O3 (1.80% ~ 2.20%)
|
< 0.2%
|
2.0 eV ~ 3.9 eV
|
Blue
|
Zirconia-doped tungsten electrode
|
ZrO2 (0.20% ~ 0.40%)
|
< 0.2%
|
2.6 eV ~ 2.7 eV
|
Brown
|
ZrO2 (0.70% ~ 0.90%)
|
< 0.2%
|
2.6 eV ~ 2.7 eV
|
White
|
Composite electrode
|
CeO2, ThO2, La2O3, ZrO2, Y2O3 (1.50% ~ 3.00%)
|
< 0.2%
|
|
Grass Green
|
Packaging of SAM Tungsten Electrode:
Our tungsten electrodes are externally clearly marked and labelled to facilitate effective identification and quality control. Considerable measures are taken to prevent damage that may occur during storage or transport.
Other Tungsten Products:
Tungsten Heavy Alloy, Tungsten Composites, Tungsten Carbide.