What is Tungsten?
Tungsten has the highest melting point of any metal of approximately 3422 degrees Celsius, but with the lowest vapor pressure. Especially, tungsten has very high density, high temperature resistance, non-toxic, etc.
Property |
Melting Point |
Max. Use Temperature |
Electrical Resistivity |
Electrical Conductivity |
Thermal Expansion |
Thermal Conductivity |
Value |
3410°C |
1700°C |
5.6@20 °C µ ohm-cm) |
31@20 °C %IACS |
4.6 ppm / °C |
165 W/m°k |
Application for Tungsten Rod
Therefore, it is now widely used in some application such as support wire, lead-in wire, printer pin, various electrodes and heating devices of quartz furnace, filaments, high speed tools, automotive products, sputtering targets, owning its special properties such as low thermal expansion combined with good thermal conductivity, sufficient electrical resistance, high modulus of elasticity. etc.
Chinatungsten can offer tungsten rod with ground surfaces and as sintered or swaged condition. Diameters range from 1 to 30 mm and up to 500 mm long depending on size and conditioning. Besides, we could offer the products not only according to the customer’s requirement, but also could design the products for free.
Furnished Form |
Specified Diameter
(mm) |
Min.Length
(mm) |
D Tolerance |
Wroughted |
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 |
+/-0.03 mm |
3.0≤d<6.5 |
300~600 |
+/-0.03 mm |
6.5≤d<10.0 |
200 |
+/-0.08 mm |
Pictures of Pure Tungsten Rod form
Chiantugnsten
 
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Any questions and feedback will be warmly welcome by email to sales@chinatungsten.com or telephone to 86 592 512 9696, 86 592 5129595.
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