Alumina A999-A

Alternative and trade names
AI203, Al₂O₃, Alumina
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Description

Aluminium Oxide with 99.9% purity and the following features:


  • Electrical insulation
  • Thermal resistance
  • Resistance to thermal shock
  • Hardness
  • Pressure resistance
  • This material data has been provided by Bosch Advanced Ceramics.

    All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
    Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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    Properties

    General

    PropertyTemperatureValueComment

    Density

    23.0 °C

    3.96 g/cm³

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    Surface roughness

    0.4 μm

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    Ra

    Mechanical

    PropertyTemperatureValueComment

    Compressive strength

    23.0 °C

    2600 MPa

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    Elastic modulus

    23.0 °C

    300 GPa

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    Flexural strength

    23.0 °C

    430 MPa

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    4-point bending flexural test

    Hardness, Vickers

    23.0 °C

    1428 [-]

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    converted from GPa

    Plane-Strain Fracture Toughnes

    23.0 °C

    5 MPa·√m

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    Thermal

    PropertyTemperatureValue

    Coefficient of thermal expansion

    23.0 °C

    8E-6 1/K

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    Thermal conductivity

    23.0 °C

    37 W/(m·K)

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    Electrical

    PropertyTemperatureValue

    Electrical resistivity

    20.0 °C

    1.00E+14 Ω·m

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    600.0 °C

    1000000 Ω·m

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    Technological properties

    Property
    Application areas

    Wear parts for the textile and the machine engineering industry

    Suitable for high temperatures and corrosive environments, e.g. in laboratories

    Insulating parts for electronics and electrical engineering

    Processing history

    Additive Manufactureing (AM)