Sell:tungsten wires
Sell：Tungsten Wire
Supplier: Chinatungsten Online
The popular tungsten wire was redrawing from tungsten rod, and it always made from ammonium paratungstate with K element doped for the application of anti tag, the tables below given different types and applications of K-doped tungsten wires.
 
The surface of electrolytic polished tungsten wire shall be smooth, clean, gray silver with metal luster. The tungsten wire features exellent formability, long life and super lighting efficiency. Mainly applied for making various electron tube, H series auto lamp, halogen lamp and other special lamp.
|
Type、Composition and Applications of tungsten wire |
|
Type |
W (%,min ) |
Applications |
|
WAL1 |
99.92 |
Filaments for high temperature, vibration resistant; doublespiral lamp filaments; grid cathodes;folding lamp filaments and stranded wire, etc. |
|
WAL2 |
99.92 |
Lamp filaments; thermal filaments; grid cathodes; tungsten stranded wire and tungsten heaters, etc. |
|
W1 |
99.95 |
Electrodes; heating components and stranded tungsten wires, etc. |
|
W2 |
99.92 |
Grid siderods; leading wire and stranded tungsten wire, etc. |
|
Diameter、Weight and Allowed deviation |
|
Diameter
(µm) |
Weight (mg/200mm) |
Allowed deviation of wt(%) |
Allowed deviation of dia. (%) |
|
Grade-0 |
Grade-I |
Grade-II |
Grade-I |
Grade-II |
|
5≤d≤10 |
0.075~0.30 |
-- |
±4 |
±5 |
-- |
-- |
|
10≤d≤18 |
>0.30~0.98 |
-- |
±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 |
>722.71~371.19 |
-- |
±1.0 |
±1.5 |
-- |
-- |
|
350≤d≤500 |
-- |
-- |
-- |
-- |
±1.5 |
±2.0 |
|
500≤d≤1800 |
-- |
-- |
-- |
-- |
±1.0 |
±1.5 |
Any order of specific requirements about diameter tungsten wires will be welcomed.
Packing: The manufacture’s standards packages.
Any special requirement maybe met according to contract terms.
If you have any question, please contact our engineer without any hesitates.
This commodity offered by Chinatungsten Online
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