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July 2008
METGRAF™ Products
Controlled Expansion, Lightweight, High Thermal Conductivity Aluminum and Copper Graphite
Fiber Composites for Thermal Management y Data METGRAF 4-230 METGRAF 7-200
Al MetGraf 4‐230 Al MetGraf 7‐200 Cu MetGraf 7‐300 Cu MetGraf 4‐280
Matrix Alloy Al Al Cu Cu TC (W/mK)
In Plane (x‐y) 220‐230 185‐200 285‐300 265‐280 Thickness (z) 120 125 210 200
Cp (J/g‐K) 0.852 0.879 0.433 0.448 CTE (Avg. 20°C to 150°C ppm/C)
In Plane (x‐y) 4 7 7 4 Thickness (z) 24 24 16 16
Tensile Strength (ksi) In Plane (x‐y) 15 13.5 10 9.9 Thickness (z) 5.5 5
Compressive Strength (ksi) 29.4 29.4 28.5 Yield Strength (ksi In Comp) 15.9 15.9 12.2 Young’s Modulus (msi) 14.3 12.9 11.0 10.4 Flexure Strength (ksi) 27 23 23 Electrical Resistivity (µ∙ohm∙cm) 6.89 4.36 Hardness (Rockwell E) 60‐80 Density (g/cc) 2.40 2.46 6.07 5.5 Plating Ni, Au, Ag Ni, Au, Ag Ni, Au, Ag Ni, Au, Ag Machinability Excellent Excellent Excellent Excellent
METGRAF
™ is a trademark of Metal Matrix Cast Composites, LLC
Technical information contained herein is furnished without charge or obligation, and is given and accepted at recipients sole risk.
Metal Matrix Cast Composites, LLC Phone (781) 893‐ 4449 101 Clematis Avenue Fax (781) 893‐ 7230 Waltham, MA 02453 www.metalmatrixcomposites.com