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Fused Silica Clear Quartz Rod similar to GE214
It is a special glass that contains silicon dioxide. INPU quartz glass rod is made from natural quartz
after the process of melting and fine grinding. It has high purity, heat resistance and corrosion
resistance, also be low coefficient of thermal expansion. It is transparent and colorless,
contains no air bubble and no processing trade will be found.
It is purity is controlled to the grade of PPM, and also has the great performance such as how heat
expansion rate, high temperature proof, fiber optic lighting, chemical stability, perfect insulation, etc.
Physical Properties
Density | 2.2±0.05 (g/cm³) |
1.Thermal stability: cooling from 1100°C to 20°C for three times,No crack.
2.Heating to 1100°C for one hour ,No color change |
Hardness | 5.5-6.5 (Mohs') | |
Design Tensile Strength | 4.8X107(N/m²) | |
Design Compression Strength | >1.1X109 (N/m²) | |
Coefficient of Thermal Expansion(20°C-300°C) | 5.7X10-7 (cm/cm°C) | |
Thermal Conductivity (20°C) | 1.4 (W/M.°C) | |
Specific heat(20°C) | 670 (J/kg.°C) | |
Electrical Resistivity (350°C) | 7x107(Ω.cm) | |
Dielectric Constant | 3.75 | |
Dielectric Strength | 5x107(v/m) | |
Softening Point | 1680 (°C) | |
Annealing Point | 1210 (°C) | |
Strain point | 1120 (°C) | |
Short-period working temperature | 1300 (°C) | |
Long-period working temperature | 1100 (°C) |
Chemical Elements Composition (unit: ppm)
SiO2 | Al | Fe | Ca | Mg | Ti | Mn | B | K | Na | Li |
99.98% | 18 | 1.0 | 1.92 | 1.85 | 1.2 | 0.05 | 0.2 | 1.5 | 1.5 | 0.5 |
Application
High temperature proof, Scientific research, Medical, Electronic instrument, Optical industry, Vacuum instruments and light source, Quartz making, Wafer carriers and Push rods in semiconductor industry.


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