Technical Data Sheet
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Quartz - Fused 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. With diameters ranging from 2mm to 300mm and wall thicknesses from 0.5mm to 15mm, Goodfellow's extensive selection of fused quartz tubes supports diverse applications in optics, electronics, analytical equipment, and high temperature processing.
Outside Diameter: 7mm
Wall Thickness: 1mm
Inside Diameter: 5mm
Length: 270mm
Technical Name: Quartz - Fused
Formula: SiO₂
Density: 2.2g/cm³
CAS Number: 14808-60-7
UOM Code: 617-456-34
SKU: 1000202997
Product Code: SI61-TB-000250

Tolerances

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

Tube
Outside Diameter =<2mm ±10%
Outside Diameter =<5mm ±10%
Outside Diameter >5mm ±10%
Wall Thickness ±20%
Technical Data Sheet
Safety Data Sheet

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Material Properties for Ceramics

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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