Low Thermal Expansion Tungsten Carbide Flat Stock Heat Resistance
Low Thermal Expansion Tungsten Flat Bar Heat Resistance
Main Characteristics:
High melting point (3410°C)
Low thermal expansion
High electrical resistance
Low vapor pressure
Good thermal conductivity
High density
Details
1. Material: tungsten
2. Purity:>=99.95%
3. Dia: 0.8mm Min
4. Surface: black, sintering, polishing,machining
Chemical Composition
| Element | Mo | Mg | Fe | C | Al | N | Si | Ca | Ni | C | |
| Concentration(%) | 0.01 | 0.003 | 0.005 | 0.005 | 0.002 | 0.003 | 0.005 | 0.005 | 0.003 | 0.008 | |
| Purity(Metallic Base) W≥99.95% | |||||||||||
Parameters
wholesale customized 99.95 % pure tungsten bars
| Machining | Diameter | Diameter tolerance % | Max length, mm |
|
Forging, Rotary swaging |
1.6-20 | ±0.1 | 2000 |
| 20-30 | ±0.1 | 1200 | |
| 30-60 | ±0.1 | 1000 | |
| 60-70 | ±0.2 | 800 |
Note: Your special request for wholesale customized 99.95 % pure tungsten bars will be available.
|
Atomic number |
74 |
|
CAS number |
7440-33-7 |
|
Atomic mass |
183.84 [g/mol] |
|
Melting point |
3420 °C |
|
Boiling point |
5555 °C |
|
Density at 20 °C |
19.25 [g/cm3] |
|
Crystal structure |
Body-centered cubic |
|
Coefficient of linear thermal expansion at 20 °C |
4.410-6[m/(mK)] |
|
Thermal conductivity at 20 °C |
164 [W/(mK)] |
|
Specific heat at 20 °C |
0.13 [J/(gK)] |
|
Electrical conductivity at 20 °C |
18.2106[S/m] |
|
Specific electrical resistance at 20 °C |
0.055 [(mm2)/m] |
Applications
Parts of the electric light source and electron tube
Heat elements of high-temperature furnace
Structures of high-temperature furnace
Contact of electrical appliance
Rare earth industry
Vacuum coating industry
FAQ
1. Are you a trading company or manufacturer?
2. How can we guarantee quality?
3. How long is your delivery time?
4. Do you provide samples?
bulk orders.
5. What are your payment terms and method?
shipment. We accept T/T, L/C, Alipay, PayPal, Western Union Wechat, and so on.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.