Purity | >99.99% |
Density | 2.2(g/cm3) |
Degree of hardness Moh' scale | 6.6 |
Melting point | 1732℃ |
Working temperature | 1100℃ |
Max temperature can reach in a short time | 1450℃ |
Acid tolerance | 30 times than Ceramics , 150 times than Stainless steel |
Visible light transmittance | above 93% |
UV spectral region transmittance | 80% |
Resistance value | 10000 times than ordinary glass |
Annealing point | 1215℃ |
Softening point | 1730℃ |
Mechanical Property | Reference Value | Reference Value | Reference Value | |
Density | 2.203g/cm3 | Refractive Index | 1.45845 | |
Compressive Strength | >1100Mpa | Coefficient of thermal expansion | 5.5×10-7cm/cm.°C | |
Bending Strength | 67Mpa | Hot work temperature | 1750~2050°C | |
Tensile Strength | 48.3Mpa | The temperature for a short time | 1300°C | |
Poisson's Ratio | 0.14~0.17 | The temperature for a long time | 1100°C | |
Elastic Modulus | 71700Mpa | Resistivity | 7×107Ω.cm | |
Shearing Modulus | 31000Mpa | Dielectric Strength | 250~400Kv/cm | |
Moths Hardness | 5.3~6.5(Moths Scale) | Dielectric Constant | 3.7~3.9 | |
Deformation Point | 1280°C | Dielectric absorption coefficient | 4×104 | |
Specific Heat(20~350°C) | 670J/kg °C | Dielectric loss coefficient | 1×104 | |
ThermalConductivity(20°C) | 1.4W/m °C | Typical Mechanical Property of Fused Quartz |