SupremEX® 640XA (6061B) T6 Billet

Alternative and trade names
SupremEX® 640XA
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SupremEX® 640XA is an aerospace grade metal matrix composite (MMC) based on an aluminum alloy (6061B) with a reinforcing phase of 40% silicon carbide.

640XA is produced powder metallurgically by mechanical mixing. This results in a fine grain structure, which improves the mechanical properties.

SupremEX composites are hardenable and offer high strength and a high modulus of elasticity, making them ideal for Structural components.

Advantages of 640XA:

  • Weight saving
  • Static strength comparable to that of high-strength aluminium alloys
  • High strength
  • High fatigue resistance
  • Good friction & abrasion properties
  • Good machinability
  • Equivalent Materials

    Ashby charts

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    2.9 g/cm³ at 23 °C


    Elastic modulus


    140 GPa at 23 °C

    Show Aluminium Matrix Composite materials with Elastic modulus of 140 GPa at 23 °C



    1 - 1.3 % at 23 °C

    Show Aluminium Matrix Composite materials with Elongation of 1 - 1.3 % at 23 °C

    Poisson's ratio


    0.3 [-] at 23 °C

    Show Aluminium Matrix Composite materials with Poisson's ratio of 0.3 [-] at 23 °C

    Tensile strength


    540 - 560 MPa at 23 °C

    Show Aluminium Matrix Composite materials with Tensile strength of 540 - 560 MPa at 23 °C

    Yield strength Rp0.2


    450 - 490 MPa at 23 °C

    Show Aluminium Matrix Composite materials with Yield strength Rp0.2 of 450 - 490 MPa at 23 °C


    Coefficient of thermal expansion


    1.3E-5 1/K at 23 °C

    Specific heat capacity


    800 J/(kg·K) at 23 °C

    Thermal conductivity


    130 W/(m·K) at 23 °C

    Technological properties

    Application areas

    Commercial and Military Aerospace: Outlet guide vanes, Hydraulic / Fuel blocks, Wheels, Fixed wing structure/ skins, Helicopter components - Commercial and Preformance Automotive: Pistons, Piston pins, Cylinder liners, Brake calipers, Connecting rods, Push rods, Valve train, Chassis components - Space, Defence and Optical Systems: Optical systems & sensors, Satellite structures, Astronomical telescopes

    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.