Effect of solution annealing on the corrosion resistance of AISI 304 stainless steel in hydrochloric acid media was studied. Corrosion tests were performed on AISI 304 stainless steel immersed in 0.5- 1.5M HCl and heated between 30 o C to 60 o C to simulate certain environments in the oil industry. Corrosion rate was determined for solution- annealed and un- treated samples using the weight loss measurement. Results show that corrosion rate of the samples increases with concentration and temperature of HCl medium; and that the annealed stainless steel samples show up to 36% corrosion resistance improvement than the untreated stainless steel samples.