<p>This study tackles the enhancement of microhardness, elastic moduli, thermal expansion coefficient, and corrosion resistance of silicon bronze (SB), while preserving its electrical conductivity from breakdown. A hybrid reinforcing approach was used, including in-situ-synthesized Mg₂Si and ex-situ-introduced Ti₃SiC₂ MAX phase. Mg₂Si, a semiconducting phase generated following sintering by a thermally activated synthesis, enhances overall characteristics without significantly increasing porosity, thus preventing a substantial decrease in electrical conductivity. Moreover, the MAX phase, characterized by its high electrical conductivity, helps maintain conductivity and significantly enhances the previously described qualities. The synergistic integration of Mg₂Si and MAX phase results in optimized property improvement and good electrical performance. The composite was characterized for its structure, mechanical properties, thermal expansion, corrosion behavior, and electrical conductivity. X-ray results of the sintered samples showed the formation of the Mg₂Si phase at the expense of the Cu₃Si phase after adding Mg. A significant improvement in the mechanical properties of the composites was recorded, as the highest microhardness, compressive strength, and Young’s modulus were recorded at 127.46 HV, 375.44&#xa0;MPa, and 162.86 GPa for the sample enhanced with 5% Mg and 8% MAX phase (SB5), as they improved by about 69.70%, 32.68%, and 28.24%, respectively, compared to SB alloy (SB1). Moreover, the thermal expansion coefficient (CTE) and corrosion rate of the same sample decrease to 11.11 × 10⁻⁶/°C and 0.179 mmpy, representing decreases of approximately 32.32% and 63.55%, respectively, compared to SB1 (16.41 × 10⁻⁶/°C and 0.492, respectively). Finally, the electrical conductivity of the SB5 sample decreased slightly from 1.22 × 10⁷ S/cm for SB1 to 0.94 × 10⁷ S/cm.</p>