The main objectives of this study are to combine AA5128 and Carbon Nanotubes to form a hybrid composite and evaluate its properties. Experiments were conducted to characterize the mechanical characteristics of different hybridized composites, including tensile and hardness test using specimens produced by stir casting process in compliance with ASTM Standards. Characterization of the composite specimens demonstrates that the composite materials' mechanical properties increase as reinforcements are incorporated into the aluminum matrix, highlighting the need for the development of such composites for high-end applications requiring tailored properties and better performance capabilities. The use of 1% E-glass, CNT (1.5%) and E-Glass CNT (5%). When reinforced with AA5128 Hybrid metal matrix composite, tensile strength rise by 146.7 and 257.08 %, respectively, at a reinforcement content of 1.5 %. The higher tensile strength can be attributed to an increase in the bonding area between the matrix and the reinforcement at the interface. The ultimate tensile strength of A8 hybrid composites is 179.457 MPa. The reinforcements (E-Glass and CNT) and metal matrix (AA5128) have different coefficients of thermal expansion (CTE) and elastic moduli (EM), but by forming geometrically necessary dislocations during material cooling and straining, this mismatch is accommodated and the mechanical properties are improved. Tensile loads may be transferred uniformly throughout an E-glass and CNT matrix. © 2024 Elsevier B.V., All rights reserved.