Continuous casting (CC) of steel is the continuous and direct shaping of molten steel into semi-finished steel sections such as blooms, billets and slabs. Continuous casting was invented in 1840 for the production of lead pipes, but it was not commercialized until the 1930s. Continuous casting is one of the most important production processes invented in the world in the steel industry, which results in improvements in quality. , has brought efficiency, productivity and economy in steel products. Today, more than 95.5% of global crude steel production is produced by this method. The use of continuous casting method is a very important and advanced metallurgical phenomenon in which the production speed of ingots is greatly increased and the metallurgical quality of ingots is also improved due to the uniformity and homogeneity of production. The uniformity and flawlessness of the ingots in this method has caused less production waste during rolling and more economical production. By means of continuous ingot casting, most non-ferrous metals, carbon and alloy steels can be cast. Since the application of this method until now, great improvements have been made in the implementation techniques. More than 50% of global steel production is done in this way. In Japan, more than 80% of steel production is connected to the casting method.

Usually, when solidification of basic shapes is required for production by other methods (such as rolling or forging), continuous continuous casting is used. This method is also used to produce long, continuous parts with special sections. In this method, a large number of parts are produced with only one mold, because each part is basically a cut part of a continuous production. In addition, due to the absence of contamination of the melt during pouring, the quality of the final product is very high, and the displacement of the material is reduced to the minimum possible.

To achieve the mentioned goals, it is inevitable to use special refractory parts in continuous casting.