Mold powder, continuous casting method of ultra-low sulfur steel, its slab

摘要

PPROBLEM TO BE SOLVED: To provide mold powder for continuous casting in which an S increase on and after a refining process is small and a low sulfur steel material can be stably manufactured, a continuous casting method for the extra low sulfur steel using the same, and a cast slab in which an S pick-up amount is suppressed. PSOLUTION: The continuous casting is performed by using the mold powder with an S content of 0.1 mass % or less, and moreover, with basicity of 1.0 or more. PCOPYRIGHT: (C)2003,JPO