Macor Rod/Bar

Macor Rod/Bar

Macor Rod/Bar

  • Custom sizes and standard sizes in stock
  • Quick Lead Time
  • Competitive Price
  • Macor Rod/Bar offers a reliable combination of high mechanical strength, electrical insulation, and excellent dimensional stability across extreme temperatures. With zero porosity and the ability to withstand up to 800°C under load (and 1000°C without load), it maintains rigidity where many high-temperature plastics would deform. It can be machined with standard metalworking tools to very tight to

Or email us at sales@heegermaterials.com.

Macor Rod/Bar Data Sheet

Color:

White

Material Composition:

Fluorphlogopite & Borosilicate Glass

Dimensions:

Customized

Processing Precision:

0.01mm

Roughness:

0.8μm

Macor Rod/Bar Description

Macor Rod/Bar offers a reliable combination of high mechanical strength, electrical insulation, and excellent dimensional stability across extreme temperatures. With zero porosity and the ability to withstand up to 800°C under load (and 1000°C without load), it maintains rigidity where many high-temperature plastics would deform. It can be machined with standard metalworking tools to very tight tolerances, eliminating the need for post-machining sintering. Macor rods are also vacuum-compatible, non-outgassing, and can be bonded or metallized, making them a practical solution for demanding applications in aerospace, medical, and high-precision instrumentation.

Macor Rod/Bar Chemical Compositions

Element / CompoundApproximate Weight (%)
Silicon (SiO₂)46%
Magnesium (MgO)17%
Aluminum (Al₂O₃)16%
Potassium (K₂O)10%
Boron (B₂O₃)7%
Fluorine (F)4%

Macor Rod/Bar Features

  • Easily Machinable with Metal Tools: No need for sintering or special equipment—Macor can be drilled, milled, and turned using standard metalworking tools.
  • High Thermal Resistance: Maintains strength and shape up to 800°C (and even 1000°C without load), making it reliable for extreme heat environments.
  • Excellent Electrical Insulation: Withstands high voltages and offers stable dielectric performance, suitable for vacuum and electronic applications.
  • Zero Porosity and Low Outgassing: Ideal for ultra-clean systems such as semiconductor chambers, space applications, and medical environments.
  • Dimensional Stability: Low thermal expansion and good thermal shock resistance ensure components remain precise even under fluctuating temperatures.

Macor Rod/Bar Applications

  • Aerospace Insulating Components: Used for precision thermal insulators and support structures in satellites and spacecraft.
  • Medical Equipment Parts: Ideal for non-reactive, clean, and sterilizable components in diagnostic and surgical instruments.
  • Vacuum System Hardware: Commonly used in vacuum chambers and electron beam systems where low outgassing is critical.
  • High-Temperature Fixtures: Serves as stable support rods or holders in furnaces, ovens, and thermal testing equipment.
  • Electrical Isolators: Acts as a reliable insulating bar or terminal spacer in high-voltage and RF electronic assemblies.

Macor Machinable Glass Ceramic Properties

PropertyUnitsMacor
Densityg/cm32.52
Young’s ModulusGPa66.9
Poisson’s Ratio0.29
Compressive StrengthMPa345
Flexural Strength @ 25°CMPa94
Fracture Toughness KIcMPa m1/21.53
Shear ModulusGPa25.5
HardnessGPa2.3
PropertyUnitsMacor
Maximum Temperature (Oxidizing)°C800
Maximum Temperature (Inert)°C1000
Thermal Conductivity @ 25°CW/mK1.46
Specific HeatkJ/kg°C0.79
CTE1 25°C ➞ -100°C10-6/K8.1
CTE1 25°C ➞ 300°C10-6/K9
CTE1 25°C ➞ 600°C10-6/K11.2
CTE1 25°C ➞ 800°C10-6/K12.3
PropertyUnitsMacor
Resistivity @ 25°Cohm-cm1014
Dielectric Constant @ 1KHz6.01
Dielectric Constant @ 8.5 GHz5.64
Loss Tangent1 kHz0.0040
Loss Tangent8.5 GHz0.0025
Dielectric Strength (AC) avg. 25°C, 12 mm thicknesskV/mm9.4
Dielectric Strength (DC) avg. 25°C, 12 mm thicknesskV/mm62.4
Volume Resistivity @25°Cohm-cm>1017

Macor Machinable Glass Ceramic Material Machining

Macor Machinable Glass Ceramic Material Machining

Macor is one of the rare ceramics that can be machined using standard metalworking tools without the need for post-sintering processes. This makes it especially useful for prototyping and custom part production with tight tolerances. However, understanding its machining behavior is key to achieving clean, precise results.

  • Standard Tool Compatibility: Macor can be drilled, milled, turned, and tapped using regular carbide or high-speed steel tools, eliminating the need for diamond tooling.
  • No Plastic Deformation: Unlike metals or plastics, Macor does not deform before breaking. Operators must prevent stress concentrations to avoid edge chipping or cracking.
  • Machining Precision: Surface finishes up to 0.5 µm and tolerances as tight as ±0.005 mm are achievable with careful planning and skilled handling.
  • Dry Machining Preferred: Coolants are generally not required. Dry machining helps prevent contamination and simplifies cleanup in high-purity applications.
  • Practice Recommended: Due to Macor’s unique cutting behavior, it’s recommended to practice machining techniques on scrap material before processing final components.

Macor Rod/Bar Ceramic Packaging

Macor machinable glass ceramic products are typically packaged in vacuum-sealed bags to prevent moisture or contamination and wrapped with foam to cushion vibrations and impacts during transport, ensuring the quality of products in their original condition.

ceramic products packing-HM

Get A Quote

We will check and get back to you in 24 hours.

To customize your macor rod or macor bar, please provide the following details:

  1. Dimensions: Length, width, height, or diameter.
  2. Purity of the material
  3. Tolerances: Specify the tolerances you can apcept.
  4. Surface Finish: polished, rough, etc.
  5. Quantity of the products you need
  6. Alternatively, you can provide a drawing with your specifications.

Once we have these details, we can provide you with a quote within 24 hours.

We carry a wide variety of macor machinable ceramic products in stock, and for these, there is generally no minimum order requirement. However, for custom orders, we typically set a minimum order value of $200. The lead time for stock items is usually 1-2 weeks, while custom orders usually take 3-4 weeks, depending on the specifics of the order.

Macor rod/bar can withstand continuous temperatures up to 800°C and brief exposures up to 1000°C without deformation. Unlike plastics, Macor maintains its rigidity and structural stability under heat, making it ideal for use in furnaces, aerospace, and thermal testing systems.

Yes, macor rod/bar is one of the few ceramics that can be machined using conventional metalworking tools such as lathes, mills, and drills. No post-sintering is required, allowing for precise fabrication of complex parts without special ceramic equipment.

Advanced Ceramic Hub, established in 2016 in Colorado, USA, is a specialized supplier and manufacturer of macor machinable ceramic glass products. With extensive expertise in supply and export, we offer competitive pricing and customized solutions tailored to specific requirements, ensuring outstanding quality and customer satisfaction. As a professional provider of ceramics, refractory metals, specialty alloys, spherical powders, and various advanced materials, we serve the research, development, and large-scale industrial production needs of the scientific and industrial sectors.

Advceramicshub Product Enquiry Form

Related Products

  • Quartz Window

    Or email us at sales@heegermaterials.com. Quartz Window Data Sheet Quartz Window Description Quartz window is a ceramic-based optical part designed to endure…

  • PECVD Graphite Boat

    Purity: ≥99% Or email us at sales@heegermaterials.com. PECVD Graphite Boat Data Sheet PECVD Graphite Boat Description PECVD Graphite Boat plays a vital role…

  • Silicon Carbide Nozzle

    Purity: ≥99% Or email us at sales@heegermaterials.com. Silicon Carbide Nozzle Data Sheet Silicon Carbide Nozzle Description Silicon Carbide (SiC) primarily exists in two…

  • Alumina Substrate

    Purity: 95%, 96%, 99%, 99.5%, 99.7%, 99.95% Or email us at sales@heegermaterials.com. Alumina substrate data sheet Alumina substrate Alumina substrate is primarily…

  • Aluminum Nitride Ball

    Purity: 95%-99% Or email us at sales@heegermaterials.com. Aluminum Nitride Ball Data Sheet Aluminum Nitride Ball Aluminum Nitride Ball is made from high-purity…

  • Nano Magnesium Oxide Powder

    Purity: 99% Or email us at sales@heegermaterials.com. Nano Magnesium Oxide Powder Data Sheet Nano Magnesium Oxide Powder Description Nano Magnesium Oxide Powder…