Home Products Metal Matrix Composites SupremEX SupremEX Composites DURABLE, LIGHTWEIGHT SUPREMEX® METAL MATRIX COMPOSITES SupremEX metal matrix composites (MMCs) provide weight reductions with increased strength when substituted for traditional aluminum or titanium alloys. Materion offers several grades of this aluminum silicon carbide composite which are engineered to improve wear resistance, fatigue strength and tensile strength at elevated temperatures in a range of advance applications. To manufacture SupremEX MMCs, we combine an ultrafine, homogeneously dispersed carbide reinforcement with an aluminum alloy. The resulting materials are superior to aluminum with increased strength and greater stiffness. SUPREMEX METAL MATRIX COMPOSITE ADVANTAGES In addition to increased strength and weight reduction, our MMC composition offers other applications advantages including: Stiffness greater than titanium Durability at high temperatures Machinability Stability for high precision tolerance designs Low friction characteristics Good thermal conductivity and a range of CTE's for thermal management and electronics packaging. COMPARE SUPREMEX GRADES Material SupremEX 225XE SupremEX 620XF SupremEX 640XA Product Form Forged Plate Forged Forged Plate Heat Treatment T6 PGQ T6 CWQ T6 PGQ Rp0.2 MPa (ksi) 400 (58) 410 (59.4) 400 (58.0) Rm MPa (ksi) 600 (87) 490 (71.1) 530 (76.9) Elastic Modulus GPa (msi) 115 (16.7) 102 (14.8) 140 (20.3) Elongation to Failure % 3-4 7 2 Density g/cm3 (lb/in3) 2.88 (0.104) 2.80 (0.101) 2.9 (0.105) Thermal Conductivity @ 25°C Wm/°K (BTU/hr.ft.°F) 150 (87) 150 (87) 130 (75) Thermal Expansion @ 25°C ppm/°K (ppm/°F ) 16.1 (8.9) 16 (8.9) 13 (7.2) Information is for comparative purposes only and information provided is based on general industry information and material properties can be different based on minimum, typical or maximum properties along with specific heat treatment conditions & product forms. PGQ refers to poly-glycol quench and CWQ stands for cold water quench. SupremEX® 225XE is an aerospace grade aluminum alloy (AA2124) that offers a high tensile modulus approximately 60 percent higher than the parent alloy and slightly higher than that of titanium. It also offers good strength, excellent fatigue characteristics and is particularly well suited for applications demanding a good balance of properties such as aerospace applications. To learn more about the physical and mechanical properties download our SupremEX 225XE data sheet. SupremEX® 620 XF is an aluminum alloy (AA6061) reinforced with silicon carbide to provide more damage resistant properties. When extruded, it produces precision shapes. To find out more about the physical and mechanical properties, download our SupremEX 620XF data sheet. SupremEX® 640XA 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. SupremEX Forms SupremEX metal matrix composites are available in: HIP Billets (hot isostatic pressing) Forged Plates or Shapes Extruded Profiles Rolled Sheets Forged or extruded SupremEX can be fabricated at a reduced cost. Talk with our engineers about the SupremEX composite that can be used in your automotive, space, defense or aerospace application. ENGINEERING DESIGN AND PROJECT SUPPORT Our Special Products and Application Development Engineering (SPADE) team can ensure that you get optimum results when using SupremEX metal matrix composites for your aerospace, defense and space applications. We manage project risk project inception to completion to ensure the best outcomes. Work with Materion’s SPADE group for engineering assistance on advanced applications.