SOFT MAGNETIC COMPONENT STEEL MATERIAL HAVING EXCELLENT PICKLING PROPERTIES, SOFT MAGNETIC COMPONENT HAVING EXCELLENT CORROSION RESISTANCE AND MAGNETIC PROPERTIES, AND PRODUCTION METHOD THEREFOR

摘要

Provided is a steel material for soft magnetic components, having excellent pickling properties and capable of achieving excellent magnetic properties and corrosion resistance in a final component. The steel material for soft magnetic components comprises, in % by mass, 0.001%-0.025% C, more than 0% but less than 1.0% Si, 0.1%-1.0% Mn, more than 0% but no more than 0.030% P, more than 0% but no more than 0.08% S, more than 0% but less than 0.5% Cr, more than 0% but no more than 0.010% Al, and more than 0% but no more than 0.01% N, with the remainder being iron and unavoidable impurities; and is characterized by having a rolled scale including 40-80 vol % FeO being formed on the steel material surface.

主权项

1. A steel material for a soft magnetic component with excellent pickling property satisfying:
C: 0.001 to 0.025% (mass % identical here hereinafter for chemical components), Si: more than 0% and less than 1.0%, Mn: 0.1 to 1.0%, P: more than 0% and 0.030% or less S: more than 0% and 0.08% or less, Cr: more than 0% and less than 0.5%, Al: more than 0% and 0.010% or less, and N: more than 0% and 0.01% or less, with the remainder consisting of iron and inevitable impurities in which a rolling scale containing 40 to 80 vol % of FeO is formed on the surface of the steel material.