High Precision Borosilicate Glass Tubes
- Product Item : HYRD-A010
- Category： Quartz Tubes
- Material: Borosilicate glass
- Purity: SiO2 80%
- Mininum Order Quantity: Negotiable
- Stock: Available
High Precision Borosilicate Glass Tubes
The custom boroslicate glass tube is made according to customer's requirement, with high precision, polished surface, good end perpendicularity. We can produce glass tubes according to customers' requirement.
Mechanical Properties of High Borosilicate Glass
|
Description |
Standard Value |
|
Main Chemical Composition |
SiO2 80.4%, B2O3 12.7%, Al2O3 2.4%, Na2O+K2O 4.2% |
|
Density (20℃) |
2.23g/cm3 |
|
Silicon Content |
Over 80% |
|
Hardness |
7 Class |
|
Elastic Modulus E |
64KN/mm2 |
|
Tensile Strength |
40-120Nmm-2 |
|
Poisson's Ratio U |
0.2 |
Thermal Properties of High Borosilicate Glass
|
Description |
Standard Value |
|
Coefficient Of Linear Expansion (20-300℃) |
3.3*10-6K-1 |
|
Long-Term Use Temperature |
450° |
|
Maximum Working Temperature/Short-Term Use Temperature |
500°C |
|
Strain Temperature |
520℃ |
|
Annealing Temperature |
560℃ |
|
Softening Temperature |
820℃ |
|
Crystallization Temperature |
695℃-1180℃ |
|
Processing Temperature (104dpas) |
1220℃ |
|
Melting Temperature |
1680℃ |
|
Heat Resistance Temperature Difference |
270℃ |
|
Specific Heat |
0.98Jg-1K-1 |
|
Thermal Conductivity |
1.2Wm-1K-1 |
