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Alumina Tube - OD 2.5mm ID 1.3mm L 450mm

Details

SKU: 1000024572 Product Code: AL60-TB-000150
Alumina Tube is a high-performance ceramic component known for its exceptional thermal stability, high hardness, and outstanding resistance to wear and corrosion. Composed primarily of aluminum oxide (Al₂O₃), it maintains structural integrity in extreme temperature environments exceeding 1600 °C, while offering excellent electrical insulation and chemical inertness. These properties make it invaluable across industries such as aerospace, metallurgy, and electronics manufacturing. Common applications include serving as protective sheaths for thermocouples, insulators in high-voltage systems, and wear-resistant conduits in abrasive material handling. In research and innovation, alumina tubes are essential for developing high-temperature reactors, precision analytical instruments, and advanced insulation systems in experimental setups. Their ability to combine thermal endurance, electrical isolation, and mechanical strength ensures reliability in both cutting-edge scientific exploration and demanding industrial processes.
Formula: Al₂O₃
Percentage Purity: 99%
Outside Diameter: 2.5mm
Wall Thickness: 0.6mm
Inside Diameter: 1.3mm
Length: 450mm
CAS Number: 1344-28-1
UOM Code: 852-379-15
Legacy Code: AL607050
Distributor Code:
GF85237915

Tolerances

Tube
Outside Diameter =<2mm ±10%
Outside Diameter =<5mm ±10%
Outside Diameter >5mm ±10%
Wall Thickness ±20%
Length <100mm ±1mm
Length >=100mm +5% / -1%
$540.00
each
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Material Properties

Chemical Resistance
Element Value
Acids - concentrated Good
Acids - dilute Good
Alkalis Good
Halogens Good
Metals Good
Electrical Properties
Element Value
Dielectric constant 9-10.1
Dielectric strength( kV mm⁻¹ ) Oct-35
Volume resistivity( Ohmcm ) >10¹⁴@25
Physical Properties
Element Value
Apparent porosity( % ) 0
Water absorption - saturation( % ) 0
Density( gcm⁻³ ) 3.9
Thermal Properties
Element Value
Melting point( C ) 2100
Upper continuous use temperature( C ) 1700
Specific heat( J K⁻¹ kg⁻¹ ) 850-900@25°C
Thermal conductivity( W m⁻¹ K⁻¹ ) 26-35@20°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 8@20-1000°C
Mechanical Properties
Element Value
Tensile modulus( GPa ) 300-400
Hardness - Knoop( kgf mm⁻² ) 2100
Hardness - Vickers( kgf mm⁻² ) 1500-1650
Shear strength( MPa ) 330
Tensile strength( MPa ) 260-300
Pultrusions
Element Value
Compressive strength( MPa ) 2200-2600