|
◆ Type & Applicatioon：
Type |
Application |
WB584 WB150 WB001 |
Applied for manufacturing non-sag tungsten wire,setting rod at H.t.,cathodes,electrode,heater element,etc |
W2 |
Applied for making lead,support,electrode,electrode. |
◆ Chemical Composition(%)：
W |
Fe |
Mo |
other impurities |
≥99.95 |
≤0.002 |
≤0.003 |
≤0.001 |
Note:K is not regarded as impurity.
◆ Diameter Range：
CLASS IFICATION |
minimal diameter |
maximal diameter |
TUNGSTEN ROD |
swaged |
3.0 |
16.0 |
straightened |
0.40 |
3.0 |
GROUND TUNGSTEN ROD |
1.0 |
14.0 |
◆ Diameter Tolerance：
Diameter |
Black tungsten rod |
Ground tungsten rod |
|
diameter tolerance |
roundness |
diameter tolerance |
roundness |
0.40<d≤0.80 |
±2 |
2 |
- |
- |
0.80<d≤3.0 |
±2 |
2 |
±0.03 |
0.03 |
3.0<d≤6.5 |
±2 |
2 |
±0.05 |
0.05 |
6.5<d≤14 |
±2 |
2 |
±0.08 |
0.08 |
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