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Formula: SiO₂
Form: Tube
Material: Quartz - Fused
CAS Number: 14808-60-7
Commodity: Ceramics

Fused Quartz Tube

Quartz - Fused Tube is a high purity, transparent form of quartz glass available from Goodfellow in 72 variations. Its optical clarity, thermal stability, chemical resistance, and low thermal expansion make it ideal for use in scientific apparatus, lamp envelopes, and semiconductor fabrication. Goodfellow's extensive selection of fused quartz tubes supports diverse applications in optics, electronics, analytical equipment, and high temperature processing.
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Tolerances

Tube
Outside Diameter =<2mm ±10%
Outside Diameter =<5mm ±10%
Outside Diameter >5mm ±10%
Wall Thickness ±20%

Material Properties for Ceramics

Chemical Resistance
Electrical Properties
Physical Properties
Thermal Properties
Mechanical Properties
Pultrusions
Chemical Resistance
Element Value
Acids - concentrated Good
Acids - dilute Good
Alkalis Fair
Halogens Good
Metals Fair
Electrical Properties
Element Value
Dielectric constant 3.8
Dielectric strength( kV mm⁻¹ ) 25-40
Volume resistivity( Ohmcm ) 10¹⁸@25
Physical Properties
Element Value
Refractive index 1.46
Useful optical transmission range 180-2500nm
Apparent porosity( % ) 0
Water absorption - saturation( % ) 0
Density( gcm⁻³ ) 2.2
Thermal Properties
Element Value
Melting point( C ) 1715
Upper continuous use temperature( C ) 1100-1400
Specific heat( J K⁻¹ kg⁻¹ ) 670-740@25°C
Thermal conductivity( W m⁻¹ K⁻¹ ) 1.46@20°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 0.54@20-1000
Mechanical Properties
Element Value
Tensile modulus( GPa ) 72-74
Hardness - Knoop( kgf mm⁻² ) 820
Hardness - Vickers( kgf mm⁻² ) 1000
Shear strength( MPa ) 70
Tensile strength( MPa ) 48
Pultrusions
Element Value
Compressive strength( MPa ) 1100

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    Fused Quartz Sheet Formula: SiO₂
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