POSCO Holdings Inc.
COMPOSITION FOR WASHING PICKLED STEEL PLATE, METHOD FOR WASHING PICKLED STEEL PLATE BY USING SAME, AND STEEL PLATE OBTAINED THEREBY

Abstract:

A composition for washing a pickled steel plate and a method for washing a pickled steel plate using the same are provided. The composition for washing a pickled steel plate includes a phosphoric acid ester compound, an amine-based compound, sodium carbonate, ammonium acetate, ethylene diamine tetraacetic acid (EDTA) and a remainder of water, and the method for washing a pickled steel plate is performed using the same.