In this study, the effect of ageing treatment on mechanical, shape memory and pseudoelastic properties of our recently developed metastable β Ti–6Cr–3Sn alloy was investigated for engineering applications. Solution-treated Ti–6Cr–3Sn alloy was aged at 373K, 473K, 573K and 673K using vacuum-sealed quartz tubes for 3.6ks followed by water quenching. Shape memory effect, fracture strain and hardness were improved by ageing at 373K most probably due to fine scale isothermal omega (ω) phase precipitation. However for samples aged at 473K, 573K and 673K, fracture strain (2%, 2% and 4%, respectively) was drastically reduced, yield stress (440MPa, 580MPa and 490MPa, respectively) and hardness (HV329, HV450 and HV457, respectively) were drastically increased as compared to solution-treated and aged at 373K conditions with no pseudoelastic response. This brittle behavior was due to increase in the amount of isothermal ω phase precipitation as compared to 373K ageing conditions. It is concluded that Ti–6Cr–3Sn alloy in solution-treated and aged at 373K has potential as shape memory and pseudoelastic materials applications with excellent strength–ductility correspondence. However mechanical, shape memory and pseudoelastic properties were drastically deteriorated by ageing at 473K, 573K and 673K due to increase in the amount of isothermal omega (ω) phase precipitation as compared to 373K ageing conditions.