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CAS 7440-33-7 99.99 W Polished Tungsten Ring Excellent Abrasion Resistance
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xProduct Details
| Name | W Ring | CAS | 7440-33-7 |
|---|---|---|---|
| Feature | Excellent Abrasion Resistance | Process | Polishing |
| Advantage | High Fractural Strength | Material | W |
| High Light | Abrasion Resistance Polished Tungsten Ring,W Polished Tungsten Ring,Abrasion Resistance Tungsten Ring |
||
Product Description
CAS 7440-33-7 99.99 W Ring Excellent Abrasion Resistance
Quick Details
Purity: W ≥99.95%
Dimensions: ring face width is about 4mm, wall thickness is about 1.5mm, inner ring circumference is 52, 54, 56, 58, 60, 62, 64mm
Process: polishing
Advantages:
1. Excellent abrasion resistance
2. High wear resistance
3. High fractural strength
4. High thermal conductivity
5. Small heat expansion co-efficient
Specification
|
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
1. Widely used in semiconductor, chemical vapor deposition (CVD) and physical vapor deposition (PVD) display and optical applications;
2. Applied in producing electrodes, heating elements, heat shields, sintering trays, sintering boats, stacking sheets, base plates, sputtering targets, crucibles in electronic and vacuum applications.
3. can be used as contacts in vehicle motors.
Q: Are you trading company or manufacturer ?
A: We are factory.
FAQ
Q: How long is your delivery time?
A: Generally it is 3-7 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to
quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample, but need pay the cost of sample and freight since our product is high value.
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.
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