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Alumina Interlocking Beads - Interlocking OD 2.29mm ID 1.02mm Q100

Alumina Interlocking Beads combine exceptional mechanical strength with outstanding wear and corrosion resistance, owing to their high-purity ceramic composition and stable crystalline structure. These beads exhibit excellent thermal stability, maintaining performance at elevated temperatures, and provide high electrical insulation, making them reliable in demanding operational environments. Commonly employed in industries such as electronics, telecommunications, chemical processing, and high-temperature engineering, they are integral in precision insulating assemblies and mechanical supports. Specific uses include alignment and spacing components in high-voltage equipment, insulating linkages in thermal or chemical reactors, and durable separators in optical or sensor devices. Their precision fit and robust ceramic nature make them critical in research and innovation, where material integrity and stability under extreme conditions are paramount. In both scientific and industrial contexts, Alumina Interlocking Beads offer a dependable solution for enhancing the performance, durability, and safety of advanced systems.
Formula: Al₂O₃
Product Shape: Interlocking
Length: 3.18mm
Outside Diameter: 2.29mm
Quantity: 100 Pcs
Inside Diameter: 1.02mm
CAS Number: 1344-28-1
UOM Code: 173-776-78
Legacy Code: AL60BE20
Distributor Code:
GF17377678
SKU: 1000022400
Product Code: AL60-BE-000120
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Material Properties for Ceramics

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
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