FERRITE STAINLESS STEEL MATERIAL AND ITS MANUFACTURE

摘要

PURPOSE:To provide a ferrite stainless steel material which has basic characteristics and advantages of ferrite stainless steel with superior acid resistance as they are and is superior in electric conductivity at high temperatures. CONSTITUTION:An oxide layer is formed by a low-temperature plasma treatment on the surface of a steel plate containing 10-35% Cr and then the oxide layer is coated with a conductive oxide. Consequently, the steel material which has the small coefficient of thermal expansion and good consistency with ceramic is obtained.