Solar Grade Quartz Tube
Solar grade quartz tubes are widely used in monocrystalline silicon growth, silicon wafer oxidation and diffusion process in solar warfer manufacturing.
Characteristics:
Solar grade quartz tube features high purity、low hydroxy and good hight-temperature resistance etc.
Product Size(mm):
| O.D. | OD Tolerance | WT Tolerance | Siding | Ovality | Bow |
|---|---|---|---|---|---|
| OD<100 | ±1.00 | ±10% | 15% | 1% | 0.1% |
| 100≤OD<200 | ±1.00 | ±10% | 15% | 1% | 0.1% |
| 200≤OD<300 | ±1.00 | ±10% | 15% | 1% | 0.1% |
| 300≤OD<400 | ±1.00 | ±10% | 15% | 1% | 0.1% |
| 400≤OD<500 | ±1.00 | ±10% | 15% | 1% | 0.1% |
| 500≤OD<600 | ±1.50 | ±10% | 15% | 1% | 0.1% |
| 600≤OD<900 | ±2.00 | ±10% | 15% | 1% | 0.1% |
Chemical Properties(ppm):
| Al | Ca | Cr | Cu | Fe | K | Li | Mg | Mn | Na | Zr | OH Content |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 15.0 | 0.50 | 0.05 | 0.05 | 0.50 | 1.50 | 1.00 | 0.20 | 0.05 | 1.50 | 1.30 | <30 |
Physical Properties:
| Items | Values |
|---|---|
| Density (g/cm3) | 2.2 |
| Heat Conductivity (w/m.k 1000°C) | 2.28 |
| Coefficient of Thermal Expansion (°C-1 1000°C) | 5.5×10-7 |
| Softening Point (°C) | 1670 |
| Annealing Point (°C) | 1210 |
| Strain Point (°C) | 1110 |
Coefficient of Thermal Expansion & Viscosity
