PURPOSE:To produce a high Ti steel having excellent castability by adding CaC2 and reforming material to ladle slag of a molten steel contg. a specific ratio of Ti, specifying (FeO+MnO) and CaO/SiO2 in the slag to specific values and adding an Li-contg. material at a specific ratio to the slag. CONSTITUTION:CaC2 is added into the ladle slag covering the molten steel contg. at least 0.08wt.% Ti to reduce the (FeO+MnO) in the slag to =3%. Further, the reforming material (wollastonite, etc., having about 0.8-1.0 basicity) is added to the slag to adjust the CaO/SiO2 of the slag to 40-50%/30-50%. The Li-contg. material (Li oxide, etc.) is added to the slag in this state at 5-30pts.wt. by the entire weight of the slag and the molten steel is refined under intensive stirring in the ladle. The greater part of the nonmetallic inclusion in the molten steel is thereby made into the low melting point sphene of CaO-TiO2-SiO2 series and the high Ti steel having the excellent castability is easily smelted.
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