<p>This study focuses on enhancing corrosion resistance and bioactivity of SS-316L implants using strontium (Sr) doped boro-silicate glasses. Since there are fewer reports based on Sr-doped bioactive borosilicate glasses, we chose to explore a unique composition in which Sr can play an important role in improving the corrosion resistance and bioactivity of implants. A series of bioactive borosilicate glasses with increasing Sr concentrations were synthesized using a rapid alkali sol–gel method. X-ray diffraction (XRD) analysis for all samples revealed the emergence of hydroxyapatite (HA) alongside the presence of calcite phase (CaCO₃) after 7 days, 14 days, and 30 days of glass immersion in simulated body fluid (SBF). Notably, scanning electron microscopy (SEM) for Sr-doped samples also showed the presence of HA and calcite crystals after 30 days. From XRD studies it was observed that at higher Sr concentrations (Sr = 6, 8 mol %), the formation of calcite was significantly suppressed, potentially due to the larger ionic size of Sr hindering the movement and release of other ions required for calcite formation. Similarly, SEM results also showed suppression of calcite crystals for (Sr = 6, 8 mol %) samples after 30 days. Based on these outcomes, the Sr-6 glass was selected for coating a 1μm thick bioactive layer on SS-316L substrate using a sol–gel dip coating method. Fourier-transform infrared (FTIR) studies confirmed the formation of a bioactive layer on the substrate, demonstrating its capability to form HA. Electrochemical tests illustrated the protective behaviour of the coating, markedly enhancing the corrosion resistance of SS-316L plates.</p> Graphical Abstract <p></p>