In this investigation an endeavor is made to determine the effect of fortification on mechanical of Al6061-B4C composite. Two composites are manufactured by varying 8 and 10 mass percentage of fortification through stir casting method. Prepared composites are tested to determine influence of fortification on tensile power and stiffness of the Metal matrix compounds. From the investigation we found that by varying supporting material in the composites properties like tensile strength and hardness was optimized. Optical and SEM images confirms that there is a homogenous dispersion of the reinforcement with the matrix hence there is increase in mechanical properties