White point prevention steel and manufacturing method thereof

摘要

PROBLEM TO BE SOLVED: To provide a steel capable of preventing the occurrence of white spots while obviating the necessity of particular treatment requiring large amounts of energy and much time, and its manufacturing method. ;SOLUTION: This white spot preventive steel has a composition consisting of, by weight, 0.01-0.70% C, 0.1-1.0% Si, 0.1-1.0% Mn, 0.1-8.0% of one or ≥2 elements among Cr, Ni, Mo, V, and W, 0.01-0.10% Al, 0.01-0.10% of Ti or Zr, and the balance Fe with inevitable impurities.;COPYRIGHT: (C)2000,JPO