Specifications

tungsten wire
1.Over 10 years experience in the industry.
2.High purity: purity>99.95%
3.Quality certification:ISO9002

 tungsten wire
1. Grade: W1,W2,WAL,WLa, WNiFe

2. Purity :> =99.95%

3. Characteristic:

Melting Point: 3410 Degrees Celsius

Boiling Point:5927 Degrees Celsius

Density: 19.3g/cm3

High quality, workability

4. Certificate: ISO9002

5. Product Feature: High melting point, High-density, high temperature oxidation resistance, long service life, resistance to corrosion..

Tungsten wire is produced by stretching the Tungsten rod to the required diameter under swaging process. With the properties of hardness, low mechanical abrasion and melting resistance, Tungsten rod/bar is widely applied to electrical contacts which can be used for electrical appliances of vehicles equipped, voltage regulator in automobile engine and other electrical systems. In addition, Tungsten rod/bar can be widely used in electrode, the gate pole in electronic tube, side rod, lead-lines, frame, gas lamp electrodes, high-power incandescent filament, the filament in electronic tube and cathode in launch tube, cylinder barrel of advanced automobile etc.

6. Dimensions and tolerance(According to clients’ requirements):

Finished form	Specified diameter	Minimum length, mm	Diameter tolerance
Wrought	2.8≤d<5.0	600	± 2%
	5.0≤d<6.5	300
	6.5≤d<11.0	200
Straightened	0.8≤d<1.0	1000	± 2%
	1.0≤d<3.0	800
Ground	0.8≤d<3.0	800 – 1000	±0.03mm
	3.0≤d<6.5	300 – 600	±0.05mm
	6.5≤d<10.0	200	±0.08mm

 

7.Composition Chemical

Designation	Tungsten Content	Impurity Elements Content
		Total	Each
WAL,1WAL2	≥99.95%	≥0.05%	≥0.01%
W1	≥99.95%	≥0.05%	≥0.01%
W2	≥99.92%	≥0.08%	≥0.01%
Note: Potassium is not counted in impurities content

 

8. Application:

Grade	tungsten content(%)	usage
WALI	>=99.92	Manufacturing wire of high color lamp, wire of shockproof lamp and double-spiral wire Manufacturing wire of incandescent lamp, cathode of transmitting tube, hyperthermia electrode and reaming tungsten wire Manufacturing folding heating cord of electron tube
WAL2	>=99.92	Manufacturing wire of fluorescent lamp Manufacturing heating cord of electron tube, wire of incandescent lamp, and reaming tungsten wire Manufacturing folding heating cord of electron tube, grid wire and cathode
W1	>=99.95	Manufacturing reaming tungsten wire and heating components
W2	>=99.92	Manufacturing grid side rod of electron tube and reaming tungsten wire