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

Macor is a unique machinable glass-ceramic developed by Corning Inc. This versatile material, with its porcelain-like appearance, offers the best of both glass and ceramic properties. Macor is an excellent insulator, thermally stable up to 1000°C, and exhibits zero porosity. It’s machinable with standard tools, holds tight tolerances and requires no post firing. Ideal for high temperature, vacuum and corrosive environments, Macor is the perfect solution for your advanced material needs. Explore its potential today.
Formula: SiO₂ 46/Al₂O₃ 16/MgO 17/K₂O 10/B₂O₃ 7
Side Length: 15mm
Side Length (Of Longer Side): 15mm
Length: 100mm
UOM Code: 505-549-53
SKU: 1000126041
Product Code: MA80-BR-000115

Tolerances

Bar
Side Length =<10mm ±10%
Side Length >10mm ±1mm
Side Length (Of Longer Side) >10mm ±1mm
Side Length (Of Longer Side) =<10mm ±10%
Length <100mm ±1mm
Length >=100mm +5% / -1%
No Minimum order Despatch of products in stock within 48 hours Free technical support *Free delivery worldwide
$128.80
each
  • Buy 5 for $104.33 each and save 19%
  • Buy 10 for $95.31 each and save 26%

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may apply for some hazardous materials.

Tolerances

Bar
Side Length =<10mm ±10%
Side Length >10mm ±1mm
Side Length (Of Longer Side) >10mm ±1mm
Side Length (Of Longer Side) =<10mm ±10%
Length <100mm ±1mm
Length >=100mm +5% / -1%
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
Pultrusions
Element Value
Compressive strength( MPa ) 345
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