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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