The transverse cracks of the micro-alloyed steel continuous casting billet seriously damage the quality of the continuous casting billet and cause great losses to the enterprise. The influence of the hot ductility, microstructure, and micro-alloying elements on transverse crack was discussed, which has been researched in-depth at home and abroad. Through a great deal of studies, various control measures of transverse crack are proposed, such as secondary cooling technology, chamfering mold, refining the surface structure of the casting slab, and double phase transformation process. However, the transverse cracks have not been fundamentally solved. Therefore, the formation mechanism and control measures of the transverse crack are summarized for providing with the idea of eliminating transverse crack.
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