ABSTRACT This study was carried out to investigate the influence of annealing temperatures on the ductility and impact toughness of springs. The springs were made from mild steel rod having a diameter of 6mm. The springs were then subjected to annealing process at temperatures of 650 o C, 700 o C, and 850 o C. The annealed springs were tested for ductility and impact toughness. The annealed spring became softer with increase in the annealing temperature; its percentage elongation, or ductility, increased from 18.75% to 30% and later 42.5 % with increase in annealing temperature. The impact toughness increased from 40 J to 45J and later to 49 J. The Rockwell hardness values however reduced from 30 RC to 23 RC and later 20 RC as annealing temperature increased