CAST TITANIUM SLAB FOR USE IN HOT ROLLING AND UNLIKELY TO EXHIBIT SURFACE DEFECTS AND METHOD FOR PRODUCING SAME

摘要

A cast titanium slab comprising a titanium alloy, wherein: an α-phase stabilizing element, a neutral element, or one or more types of elements selected therefrom are added to a surface serving as a rolling surface; a melted-resolidified layer obtained by melting and resolidifying has a depth in the range of 1mm or more; and the average concentration of the sum of the α-phase stabilizing element and the neutral element in the range up to a depth of 1mm, in comparison to the concentration of the sum of the α-phase stabilizing element and the neutral element in the base material, in mass%, is higher by at least 0.1% and less than 2.0%.