Black Tungsten Wire
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All the wires displayed this time are black tungsten wires, manufactured using high-tech processes such as doping, pickling, isostatic pressing, PLC-controlled direct sintering, die forging, and automatic feeding.
Black tungsten wire has the characteristics of less high-temperature molding, high recrystallization temperature, uniform size, and excellent winding ability. The weight of tungsten rod is 3kg/piece, and the weight of rough welding black tungsten wire is 5kg/piece. Customers can choose various types of black tungsten wire according to their specific uses.
| Diameter µm |
Weight mg/200mm |
200mm weight tolerance% |
Diameter tolerance% |
|||
|
0 |
I |
II |
I |
|
||
|
6<d<18 |
0.12-0.98 |
- |
±3 |
±4 |
|
|
|
18<d<40 |
>0.98-4.85 |
±2 |
±2.5 |
±3 |
|
|
|
40<d<80 |
>4.85-19.39 |
±1.5 |
±2.0 |
±2.5 |
|
|
|
80<d<300 |
>19.39-272.71 |
±1.0 |
±1.5 |
±2.0 |
|
|
|
300<d<350 |
>272.71-371.19 |
|
±1.0 |
±1.5 |
|
|
|
350<d<500 |
|
|
|
|
±1.5 |
±2.0 |
|
500<d<1800 |
|
|
|
|
±1.0 |
±1.5 |
