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Tungsten Wire

Overview

Thanks to the advanced equipment and technology,doped tungsten wire and special alloy tungsten wire have good performance in high-temperature non-sag property,coilability,diameter uniformity and stability.Quality registers the international advanced level.According to different applications and requirements efficiency and usability.

Selection Guide

Type Brand Features Diameter (mm) Application
Non-SAG Anti-shock Electric Discharge Machina -bility
Pure Tungsten HW11 △ △ ◎ ● 0.1～3.0 Heating materials in furnace; Non-radioactive welding electrode;contact material
Doped Tungsten HW31 ◎ ○ ○ ● 0.005～3.0 Filament of fluorescent lamp and energy-saving lamp;HID electrode.
HW41 ○ △ ○ ● 0.1～3.0 Heating resistor for vacuum metallization;heating materials in furnace;HID electrode;support wire.
HW42 ○ ○ ○ ◎ 0.1～3.0 Heating resistor for vacuum metallization;support wire.
HW61 ◎ ◎ ○ ◎ 0.005～3.0 Filament of incandescent lamp;fluorescent Lamp and energy-saving lamp;support wire;printer pins.
HW71 ● ● ○ ◎ 0.005～3.0 Anti-shock filament of auto lamp
HW91 ● ◎ ○ ◎ 0.005～3.0 Filament of halogen lamp,high color temperature lamp and auto lamp
HW99 ● ● ○ ◎ 0.005～3.0 Long-life filament of halogen lamp
Thoriated Tungsten HWTh10 ◎ ◎ ● ○ 0.1～5.0 Magnetron coil;HID electrode;welding electrode
HWTh20 ◎ ◎ ● △ 0.1～5.0 Welding electrode;HID electrode;welding electrode
HWTh40 ◎ ◎ ● △ 0.1～5.0 HID electrode;welding electrode
Lanthanum Tungsten HWLa10 ◎ ◎ ● ○ 0.1～5.0 Non-radioactive welding electrode
HWLa15 ◎ ◎ ● ○ 0.1～5.0 Non-radioactive welding electrode
HWLa20 ◎ ◎ ● ○ 0.1～5.0 Non-radioactive welding electrode
Cerium Tungsten HWCe10 ◎ ◎ ● ○ 0.1～5.0 Non-radioactive welding electrode
HWCe15 ◎ ◎ ● ○ 0.1～5.0 Non-radioactive welding electrode
HWCe20 ◎ ◎ ● ○ 0.1～5.0 Non-radioactive welding electrode
Yttrium Tungsten HWY20 ◎ ◎ ● ○ 0.1～5.0 Non-radioactive welding electrode
Compound Rare earth Tungsten HWMX ◎ ◎ ● ○ 0.1～5.0 Non-radioactive welding electrode

Note:●Best  ◎Better  ○Good  △Not

State of Finished products and corresponding Code

Products available

Code State of Finished Products Code State of Finished Products Code State of Finished Products
C Chemical Cleaned DS As-Drawn & Straightened EHS Electrolytic Polished&Annealed & Straightened
CS Chemical Cleaned & Straightened E Electrolytic Polished ES Electrolytic Polished& Straightened
D As-Drawn EH Electrolytic Polished&Annealed H Annealed

Sizes and Tolerance

Diameter （μm） Weight （mg/200mm） 200mmWeight Tolerance(%) Diameter Tolerance(%)
Grade0 GradeⅠ GradeⅡ GradeⅠ GradeⅡ
8＜d≤14 0.19＜p≤0.59 ±3.0 ±4.0 ±5.0 —
14＜d≤18 0.59＜p≤0.98 ±2.5 ±3.0 ±4.0 —
18＜d≤40 0.98＜p≤4.85 ±2.0 ±2.5 ±3.0 —
40＜d≤80 4.85＜p≤19.39 ±1.5 ±2.0 ±2.5 —
80＜d≤300 19.39＜p≤272.71 ±1.0 ±1.5 ±2.0 —
300＜d≤350 272.71＜p≤371.18   ±1.0 ±1.5 —
350＜d≤500 — — ±1.5 ±2.0
d＞500 — — ±1.0 ±1.5

Note:sizes and tolerance could be custom-made.

Straightness

As for the straightened tungsten wire,The following requirements of straightness shall be reached:

①As for the tungsten wire at or thinner than 100μm（30.3mg），vertical height of 500mm freely suspended wire shall not be less than 450mm。

②As for the tungsten wire thicker than 100μm，piece of 200mm wire is put on a paper sheet and the arc is evaluated between 2 points separated by 100mm,the maximum height of the arc is 10mm。

CHINATUNGSTEN ONLINE has been specialized in manufacturing tungsten products, especially tungsten carbide products for more than 20 years. If you have any inquires concerning the products in this website, please do not hesitate to e-mail us by : sales@chinatungsten.com