ALLOYING-ELEMENT ADDITIVE

摘要

PROBLEM TO BE SOLVED: To provide easy-handling low-cost additives used for adding alloying elements at low-alloy steel manufacture because component additives for use in operations subsequent to a deoxidation operation in a converter should be pure and have minimal impurity content to prevent molten steel from recontamination. SOLUTION: The alloying-element additives can be obtained by subjecting sheet-like or slit-like scraps of Cr-based stainless steel, Ni-based stainless steel and Ni steel to shearing into small pieces using a shredder and are used when manufacturing low-alloy steel.