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
  • Ashby charts

    See where AlBeCast 920® Composite falls on the material property chart for Density against Elastic modulus in your materials selection and design process. Our Ashby charts are interactive with more technical data upon clicking. Sign up to get access to this premium feature for free.

    Properties

    General

    Density

    ρ

    2.17 g/cm³ at 23 °C

    Mechanical

    Compressive yield strength

    R_s

    226.1 MPa at 23 °C

    Show Beryllium Matrix Composite materials with Compressive yield strength of 226.1 MPa at 23 °C

    Elastic modulus

    E

    193 GPa at 23 °C

    Show Beryllium Matrix Composite materials with Elastic modulus of 193 GPa at 23 °C

    Elongation

    A

    3 % at 23 °C

    Show Beryllium Matrix Composite materials with Elongation of 3 % at 23 °C

    Fatigue strength

    SNf

    117.2 MPa at 23 °C

    Show Beryllium Matrix Composite materials with Fatigue strength of 117.2 MPa at 23 °C

    10⁷ cycles, R=-1, Kt=1

    Poisson's ratio

    ν

    0.2 [-] at 23 °C

    Show Beryllium Matrix Composite materials with Poisson's ratio of 0.2 [-] at 23 °C

    Shear strength

    τ

    247.5 MPa at 23 °C

    Show Beryllium Matrix Composite materials with Shear strength of 247.5 MPa at 23 °C

    Pin Double Shear Strength

    Tensile strength

    Rm

    289.6 MPa at 23 °C

    Show Beryllium Matrix Composite materials with Tensile strength of 289.6 MPa at 23 °C

    Yield strength Rp0.2

    Rp0.2

    213.7 MPa at 23 °C

    Show Beryllium Matrix Composite materials with Yield strength Rp0.2 of 213.7 MPa at 23 °C

    Thermal

    Coefficient of thermal expansion

    α

    1.42E-5 1/K at 23 °C

    Specific heat capacity

    cp

    1250 J/(kg·K) at 23 °C

    Thermal conductivity

    λ

    105.5 W/(m·K) at 23 °C

    Electrical

    Specific Electrical conductivity

    40 % IACS

    Chemical properties

    Element

    Weight %

    Comment

    Al

    -

    Balance

    Be

    61.1 - 68.6 %

    Ag

    2.65 - 3.35 %

    Co

    0.65 - 1.35 %

    Ge

    0.55 - 0.95 %

    More

    Technological properties

    Primary Phase

    Secondary Phase

    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.