Home Products Composites | Compounds | Ceramics Metal Matrix Composites SupremEX® SupremEX Aluminum Silicon Carbide SupremEX 640XA SUPREMEX® 640XA SupremEX® 640XA is an aluminum metal matrix composite (AA6061) that offers an extremely high tensile modulus (nearly double that of the parent alloy), good static and fatigue strengths well in excess of high performance aluminum alloys, while retaining reasonable ductility. This composite also demonstrates superior elevated temperature strength and thermal stability when compared with conventional aluminum alloys. SupremEX 640XA has achieved Class 1 status for stress corrosion cracking resistance at an applied stress of 370 MPa, according to ESA Standard ECSS-Q-70-37A. To learn more about the physical and mechanical properties, download our SupremEX 640XA data sheet. CONTACT MATERION AEROSPACE METALS COMPOSITES If you are having trouble deciding which grade of SupremEX matches your requirements or end-use application, contact us today for assistance or for more information.