AlBeCast 920® Composite

Alternative and trade names
AlBeCast 920®
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Description

Materion's AlBeCast® product line is a family of investment cast aluminum-beryllium metal matrix composites that provides designers a net-shape product. Advantages over aluminium A356.0:

  • ~22% lower density
  • ~3 times stiffer (modulus of elasticity in tension)
  • Up to 10 times better in damping coefficient
  • ~40% lower in coefficient of thermal expansion (CTE)
  • ~50% higher specific heat
  • ~28% higher thermal conductivity

  • Advantages over beryllium:

  • ~3 times greater ductility than hot pressed beryllium with greater damage tolerance
  • Castable for complex and precise net shape configurations
  • Weldable for defect repair
  • Reduced machining and scrap generation
  • Reduced environmental processing concerns resulting from reduced waste
  • Does not require chemical etching
  • Reduced material usage
  • Reduced cost
  • This material data has been provided by Materion Brush GmbH.

    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

    PropertyTemperatureValue

    Density

    23.0 °C

    2.17 g/cm³

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    Mechanical

    PropertyTemperatureValueComment

    Compressive yield strength

    23.0 °C

    226.1 MPa

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    Elastic modulus

    23.0 °C

    193 GPa

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    Elongation

    23.0 °C

    3 %

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    Fatigue strength

    23.0 °C

    117.2 MPa

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    10⁷ cycles, R=-1, Kt=1

    Poisson's ratio

    23.0 °C

    0.2 [-]

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    Shear strength

    23.0 °C

    247.5 MPa

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    Pin Double Shear Strength

    Tensile strength

    23.0 °C

    289.6 MPa

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    Yield strength Rp0.2

    23.0 °C

    213.7 MPa

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    Thermal

    PropertyTemperatureValue

    Coefficient of thermal expansion

    23.0 °C

    1.42E-5 1/K

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    Specific heat capacity

    23.0 °C

    1250 J/(kg·K)

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    Thermal conductivity

    23.0 °C

    105.5 W/(m·K)

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    Electrical

    PropertyValue

    Specific Electrical conductivity

    40 % IACS

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    Chemical properties

    PropertyValueComment

    Aluminium

    Balance

    Beryllium

    61.1 - 68.6 %

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    Cobalt

    0.65 - 1.35 %

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    Germanium

    0.55 - 0.95 %

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    Iron

    0.45 %

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    max.

    Nickel

    0.2 %

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    max.

    Silicon

    0.2 %

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    max.

    Silver

    2.65 - 3.35 %

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    Technological properties

    Property