A study of the flow characteristics of blast furnace slag is important to record the softening and melting phenomena in blast furnace which greatly influence the extent and location of the cohesive zone having a direct say on the blast furnace operation, quality of hot metal and the coke consumption. In the present work, a noble technique (heating microscope) is adopted to determine the flow characteristics of synthetic slags with high alumina content resembling different indian blast furnace slags . It is also seen that the characteristics temperature are altered with the alteration of C/S ratio and also the MgO and TiO2 content of the blast furnace slag
