Since 1947, Insaco has been synonymous with excellence in the development and production of high precision machined parts. As a custom fabricator of ceramic, glass, sapphire, and other hard materials, Insaco specialize in machining parts that often require tolerances measured in millionths of an inch, and wear properties that satisfy even the most demanding applications.
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Physical and Mechanical Properties of Fused Quartz / Fused Silica
|
Property
|
Value
|
|
General
|
|
Chemical Formula
|
SiO2
|
|
Mechanical
|
|
Density
|
2.2 gm/cc
|
|
Hardness
|
570 Knoop
|
|
Tensile Strength
|
7 kpsi
|
|
Modulus of Elasticity
|
10.5 x 106 psi
|
|
Flexural Strength
|
> 160 kpsi
|
|
Compressive Strength
|
160 kpsi
|
|
Poisson's Ratio
|
|
|
Fracture Toughness
|
1.2 MPa m1/2
|
|
Electrical
|
|
Dielectric Strength
|
1270 ac V/mil
|
|
Dielectric Constant
|
3.8 (@ 1 MHz)
|
|
Volume Resistivity
|
7 x 109ohm-cm2
|
|
Thermal
|
|
Coefficient of Thermal Expansion
|
0.6 x 10-6/ °C
|
|
Thermal Conductivity
|
1.4 W/mK
|
|
Specific Heat
|
0.16 cal/g °C
|
|
Maximum Working Temperature
|
600-1000 °C
|
|
Optical
|
|
Index of Refraction
|
1.459
|
|
Transmission Band
|
0.2 - 3.5 Wavelength (microns)
|
All properties are at room temperature unless otherwise noted.
Engineering data are representative, and are not intended as absolute nor warrantable. Manufacturer's Data shown is blended from multiple sources and therefore illustrates the marketplace.
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This information has been sourced, reviewed and adapted from materials provided by INSACO Inc.
For more information on this source, please visit INSACO Inc.