The corrosion on smooth tinned iron material has been studied in different media.  Solutions of sulphuric acid, hydrochloric acid, acetic acid and  salt solutions of ammonium chloride and sodium chloride were prepared to investigate the corrosion on the metal plates.  The plates was immersed in the solutions for a period of time same for all the solutions in order to determine the most aggressive environment. Weight loss technique was adopted to study the rate of corrosion.  The result reveals that the material got corroded in this order sulphuric acid > hydrochloric acid > acetic acid > ammonium chloride > sodium chloride. It was therefore concluded that the rate of corrosion was high in strong acids compared to the weak acids and salts.