CONTINUOUS CASTING METHOD FOR SLAB

A primary object of the present invention is to provide a continuous casting method according to which a slab difficult for surface cracking to appear in the process from secondary cooling to blooming can be manufactured; and the present invention is a method for continuously casting a slab, comprising: a first water cooling step, a first recuperation step, a second water cooling step, and a second recuperation step in order, in a secondary cooling zone upon continuously casting the slab, wherein in the first water cooling step, the slab at no less than 1000°C in surface temperature is cooled, including that only a surface temperature of corner part is below Ar 3 point, each of the corner part being a region within 20 mm from an apex and edges of the slab, in the first recuperation step, the slab is recuperated, including that the surface temperature of all the slab including the corner part is no less than the Ar 3 point, in the second water cooing step, the slab at the Ar3 point to 900°C in surface temperature is cooled, including that the surface temperature of all the slab including the corner part is below the Ar 3 point, and in the second recuperation step, the slab is recuperated including that the surface temperature of only a portion of the slab other than the corner part is no less than the Ar 3 point.