Quartz glass characteristics
Table 1.
Mechanical Property			Reference Value
Density			2.2g/cm3
Compressive Strength			1100Mpa
Bending Strength			67Mpa
Tensile Strength			48Mpa
Poisson's Ratio			0.14～0.17
Elastic Modulus			72000Mpa
Shearing Modulus			31000Mpa
Mohs Hardness			5.5～6.5
Table 2.
Mechanical Property			Reference Value
Deformation Point			1280℃
Softening Point			1780℃
Annealing Point			1250℃
Specific Heat(20～350℃)			670J/kg.℃
Thermal Conductivity(20℃)			1.4W/m.℃
Refractive Index			1.4585
Coefficient of thermal expansion			5.5×10-7cm/cm.℃
Hot work temperature			1750～2050℃
The temperature for a short time			1300℃
The temperature for a long time			1100℃
Table 3.
Electrics Property			Reference Value
Resistivity			7×107Ω.cm
Dielectric Strength			250～400Kv/cm
Dielectric Constant			3.7～3.9
Dielectric absorption coefficient			<4×104
Dielectric loss coefficient			<1×104