Technical Data Sheet
Safety Data Sheet
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MACOR® Machinable Glass Ceramic Rod

MACOR® Machinable Glass Ceramic Rods are a popular choice in our extensive range of ceramic materials. Offering 56 variations, these machinable glass-ceramic rods provide an aluminum silicate composition with excellent electrical insulation and high-temperature resistance. Applications include semiconductor wafer handling components, vacuum viewports and feedthroughs, and other parts requiring precision machined ceramics. The availability of MACOR® Machinable Glass Ceramic Rods in multiple diameters and lengths makes them an ideal choice for the prototyping and small-scale production of ceramic mechanical components.
Formula: SiO₂ 46/Al₂O₃ 16/MgO 17/K₂O 10/B₂O₃ 7
Diameter: 12mm
Length: 50mm
UOM Code: 591-999-84
SKU: 1000126147
Product Code: MA80-RD-000112


Diameter +20% / -10%
No Minimum order Despatch of products in stock within 48 hours Free technical support *Free delivery worldwide
  • Buy 5 for $78.25 each and save 19%
  • Buy 10 for $71.48 each and save 26%

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Diameter +20% / -10%
Technical Data Sheet
Safety Data Sheet

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Material Properties for Glasses

Chemical Resistance
Element Value
Acids - concentrated Poor
Acids - dilute Fair
Alkalis Fair
Halogens 0
Metals 0
Electrical Properties
Element Value
Dielectric constant 0
Dielectric strength( kV mm⁻¹ ) 0
Volume resistivity( Ohmcm ) >10¹⁴@25
Mechanical Properties
Element Value
Poisson's ratio 0
Tensile modulus( GPa ) 67
Hardness - Knoop( kgf mm⁻² ) 0
Hardness - Vickers( kgf mm⁻² ) 400
Shear strength( MPa ) 0
Tensile strength( MPa ) 0
Fracture toughness( MPam(0.5) ) 0
Physical Properties
Element Value
Refractive index 0
Useful optical transmission range 0
Apparent porosity( % ) 0
Water absorption - saturation( % ) 0
Density( gcm⁻³ ) 2.52
Thermal Properties
Element Value
Melting point( C ) 0
Sublimation point( C ) 0
Upper continuous use temperature( C ) 800-1000
Specific heat( J K⁻¹ kg⁻¹ ) 790@25°C
Thermal conductivity( W m⁻¹ K⁻¹ ) 1.5@20°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 13@20-1000°C
Element Value
Compressive strength( MPa ) 345
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