Cold Briquetted Iron (CBI) is defined as DRI which has been molded at a temperature less than 650 �°C or with a density of less than 5000 kg/m3. Due to the raw material sharp shortage for steelmaking in many countries worldwide, a need arises to find a substitute material to replace the rare pig iron and expensive steel scraps that were used by steelmaking plants. 1- More density and less porosity The apparent density of CBI is about 8.3 grams per cubic centimeter and the density of DRI is about 2.3 grams per cubic centimeter. On the other hand, the volumetric porosity of these two products is about 30 and 50%, respectively. These two factors reduce the environmental reactivity of CBIC and its lower transportation costs. 2- Less fine The wear resistance and higher mechanical strength of CBI compared to sponge iron causes less softening to occur during the handling of the product, and as a result, both the economic value of the product is prevented and the charge losses of the product in the steelmaking furnace are prevented. is significantly reduced. 3- Easier to store and carry Due to the lower reactivity of CBI compared to DRI, the loss of metal grade of the product during storage and transportation is significantly reduced, which will reduce the amount of economic value loss of the product from the time of production to the time of use in the steelmaking furnace. On the other hand, sea transportation of CBI leads to a reduction in transportation costs compared to DRI due to the absence of the need to apply neutral gas to prevent product activation. 4- More thermal and electrical conductivity The thermal and electrical conductivity of CBI is about 2 times that of DRI. This higher conductivity of CBI improves the distribution of heat created in the steelmaking furnace and, as a result, accelerates the melting process of iron materials. This will mean reducing the melting time of the steelmaking process and improving the production capacity of the steelmaking unit. 5- Carbon adjustment The presence of carbon in steelmaking furnaces is necessary in order to provide carbon for the final steel product, prevent excessive losses of iron, and also regulate the physical and chemical conditions of the slag. Usually, induction furnaces require low-carbon iron materials, but in electric arc furnaces, high-carbon iron materials are more attractive. The unique feature of CBI product is the ability to adjust its carbon content in the range of 0.5 to 4% by weight and based on the needs of customers.