NON-ORIENTED SILICON STEEL SHEET EXCELLENT IN MAGNETIC PERMEABILITY, HOT ROLLED SHEET THEREOF AND METHOD FOR PRODUCING THE SAME

摘要

PURPOSE: A non-oriented silicon steel sheet with superior magnetic permeability is provided. CONSTITUTION: The non-oriented silicon steel sheet excellent in magnetic permeability contains 0.1 to 1.0wt.% Si, 0.1 to 0.8wt.% Mn and 0.1 to 1.0wt.% Al, and the balance Fe with inevitable impurities, has σγ-transformation and has electrical resistivity of 10 x10¬-8Ωm to 32x10¬-8Ωm and magnetic permeability μ15/60 of 1,500 (Gauss/Oe) or more.