Physical and Mechanical Properties of Fused Quartz / Fused Silica by Insaco

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

0.17

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.

This information has been sourced, reviewed and adapted from materials provided by INSACO Inc.

For more information on this source, please visit INSACO Inc.

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