Quartz glass possesses excellent optical, mechanical, and thermal properties, making it an indispensable material for high-tech products. Its thermal stability, high transmittance, and acid resistance are attributed to the strong Si-O bonds; while its low thermal expansion coefficient, thermal shock resistance, and homogeneity are due to its amorphous structure.
| Mechanical Characteristics |
|
| Density[g/cm3] |
2.203 |
| Mohs Hardness |
5.5~6.5 |
| Poisson's Ratio |
0.17 |
| Speed of Sound[m/s] |
5720 |
| Compressive Strength[N/mm2] |
1150 |
| Tensile Strength[N/mm2] |
50 |
| Bending Strength[N/mm2] |
67 |
| Torsion Strength[N/mm2] |
30 |
| Thermal Characteristics |
|
| Softening Point[°C] |
1710 |
| Annealing Point[°C] |
1220 |
| Strain Point[°C] |
1125 |
| Maximum Working Temperature[°C] |
1160 |
| Short-Term Maximum Working Temperature[°C] |
1300 |
| Thermal Conductivity [W/(mK)] |
|
| 20°C |
1.38 |
| 100°C |
1.47 |
| 200°C |
1.55 |
| 300°C |
1.67 |
| 400°C |
1.84 |
| 950°C |
2.68 |
| Thermal Expansion Coefficient[K-1] |
|
| 100°C |
5.1*10-7 |
| 200°C |
5.8*10-7 |
| 300°C |
5.9*10-7 |
| 600°C |
5.4*10-7 |
| 900°C |
4.8*10-7 |
| Dielectric Loss (tanδ) |
|
| 1kHz |
5*10-4 |
| 1MHz |
1*10-4 |
| 30GHz |
4*10-4 |
| Dielectric Constant (ε) |
|
| 20°C |
3.70 |
| 23°C |
3.77 |
| 23°C |
3.81 |
Haishan Quartz is capable of producing fused quartz glass tubes with outer diameters ranging from 5 to 500mm, with a SiO2 content of 99.999%.
Quartz helical tubes are used in electric heating devices and chemical reactions.
Quartz tubes can be customized according to customer requirements, including dehydroxylation, grinding, welding, drilling, cutting, slotting, etc., based on customer drawings.
Offering a wide range of specifications for quartz glass rods.
