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Alumina Socket Bolt

The Alumina Socket Bolt is a ceramic material bolt within Goodfellow's wide range of bolts. Alumina, or aluminum oxide, is known for its excellent hardness, wear resistance and electrical insulation. This advanced ceramic material is available in multiple sizes and thread configurations to suit different fastening applications. With its lightweight yet rigid construction, alumina socket bolts are ideal for use in high temperature environments like automotive engines or industrial furnaces. Alumina bolts can also provide electrical isolation in electrical connectors or scientific instrumentation. With Goodfellow, engineers can select from multiple alumina bolt variations to meet their specific design needs.
Formula: Al₂O₃
Head Style: Socket Head
Size: M3 x 5mm
Quantity: 10 Pcs
Pitch: 0.5mm
Standard: ANSI B18.3.1M-1986 (R2008)
CAS Number: 1344-28-1
UOM Code: 555-424-16
SKU: 1000022478
Product Code: AL60-BT-000129

Tolerances

Bolt
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Tolerances

Bolt
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Technical Data Sheet
Safety Data Sheet
$435.67
each
  • Buy 5 for $352.89 each and save 19%
  • Buy 10 for $322.39 each and save 26%
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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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