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Baoji Refractory Metal Developer Co.,Ltd is one of the leading China tungsten bar manufacturers and suppliers, and as a professional company we have productive factory, welcome to wholesale tungsten bar, tungsten rod products from us.
² Chemical Composition:
Tungsten content |
The sum of other elements |
Content of each element |
≥99.95% |
≤0.05% |
≤0.01% |
² Specification：
Description |
Diameter (mm) |
Length (mm) |
Rod |
Φ0.800~Φ12.00 |
50~2000 |
Bar |
Φ12.00~Φ20.00 |
50~2000 |
Φ20.00~Φ30.00 |
50~1200 |
|
Φ30.00~Φ60.00 |
50~1000 |
|
Φ60.00~Φ70.00 |
50~800 |
|
＞Φ70.00 |
50~600 |
|
Note:All the products can be supplied in according to customer’s requirement. | ||
²Range of use:
—For producing tungsten wires,tungsten heater,
twisted tungsten wire,negative electrodes,grids,
lead side rods wires,supports,and electrodes etc.
²Surface finish:
—Black surface
—Alkali cleaning surface
—Grinded surface
²Tolerance：
|
Diameter（mm） |
Tolerance（mm） |
|
Black |
Polishing |
|
Φ0.800~Φ3.000 |
±2% |
±0.03 |
＞Φ3.000~Φ6.500 |
±2% |
±0.05 |
＞Φ6.500~Φ11.00 |
±2% |
±0.10 |
＞Φ11.00~Φ20.00 |
±2% |
±0.30 |
＞Φ20.00~Φ30.00 |
±2% |
±0.50 |
＞Φ30.00~Φ60.00 |
±2% |
±0.70 |
＞Φ60.00~Φ70.00 |
±2% |
±1.0 |
＞Φ70.00 |
±2% |
±1.5 |
Note:Special demands on tolerance available. | ||