Billet is one of the intermediate products in steel rolling and one of the final products in “Navard va Tolide Ghataat Fooladi” company. The cross-sectional area of the billets produced by the company is square. The cross-sectional area of a billet is less than 230 square centimeters and it is longer than a bloom. Therefore, billets are usually used to produce long products such as bars and wire rods. Bloom is also referred to as a billet.