This study aims to demonstrate the thermal, economic, and environmental feasibility of steam production through the recovery of waste heat released into the atmosphere after the sintering process in the iron and steel industry. Specifically, experimental measurements were conducted in the sinter cooling system of Kardemir Inc. using both fixed and mobile temperature sensors, with thermal camera support to enhance the accuracy of the temperature data. The sinter cooling system was divided into three different regions, and experimental findings were obtained accordingly. The maximum average temperature value was recorded in Region I as 219.4 degrees C, which was taken as a reference for thermodynamic and economic analysis. In the modeling, a waste heat temperature range of 200-260 degrees C and steam pressures of 5, 7, and 9 bar were considered. According to the results, it was found that as the waste heat source temperature increases, the thermal energy potential also increases; however, an increase in steam pressure raises the saturation temperature, thereby reducing the amount of recoverable energy from the system. The maximum steam production was determined to be 7.55 tons per hour at a waste heat temperature of 260 degrees C and a steam pressure of 5 bar. The economic analysis showed that the total capital investment increased from $3.30 million to $4.72 million when the waste heat temperature rose from 200 degrees C to 260 degrees C. Moreover, the payback period compared to an electric steam generator decreased from 1.69 years to 0.94 years. It was concluded that the Heat Recovery Steam Generators-based (HRSG) waste heat recovery system provides an environmentally sustainable and economically viable solution for industrial steam production. Furthermore, the implementation of the system could potentially reduce CO2 emissions by up to 58.26 tons per day.