Steel Wire Rod and Process for Producing Steel for Steel Wire Rod

摘要

Wire of the present invention, the average composition of the oxide width than 2㎛ in the longitudinal vertical cross-sectional view, in weight%, SiO _2: 0.1 to 10% a: more than _{70%, CaO + Al 2 0} 3: less than 20%, ZrO ₂ It will be included. The wire rod is excellent in cold workability such as twisting processability and also, the wire produced by the wire material has a high fatigue strength.