The preparation of Metal Matrix Composite (MMCs) Al/SiCp and Al-Cu/SiCp with the addition of silicon carbide powder (SiCp) and mixing with the hot sterring method has been done successfully. Material Al and Al-Cu melted in the temperature of 900°C then added SiC with variations (1, 2, 3, 4) weight % with the method of hot sterring. Microstructural observation with SEM shows both Al/SiCp and Al-Cu/SiCp grain boundaries are not obvious. Testing tensile test showed that the addition of Cu make Yield Stress tends to increase. While the corrosion rate of Al-Cu/SiCp is smaller when compared to Al/SiCp. Meaning Al/SiCp tends to be more corrosive when compared to Al-Cu/SiCp.