HIGH-Al STAINLESS STEEL PLATE AND DOUBLE-LAYERED PLATE, PROCESS FOR PRODUCING THE SAME, A HONEYCOMB STRUCTURE THEREFROM AND PROCESS FOR PRODUCING THE HONEYCOMB STRUCTURE

摘要

An Fe-Cr-Al stainless steel plate of high Al content exceeding 6.5% and double-layered plate thereof; a honeycomb structure produced from the stainless steel plate or double-layered plate; and a process for producing the stainless steel plate and double-layered plate. In particular, an Fe-Cr-Al stainless steel plate of high Al content characterized by comprising, in terms of mass%, 10 to 30% of Cr and more than 6.5 to 15% of Al, and high-Al double-layered plate thereof. Preferably, further, one or both of 0.02 to 0.1% of Ti and 0.02 to 0.3% of Nb are contained and simultaneously 0.01 to 0.1% of La, 0.01 to 0.1% of Ce and 0.01 to 0.05% of P are contained therein. Also preferably, further, 0.01 to 1.0 mass% of Cu is contained. Still also preferably, further, 0.001 to 0.1 mass% of Mg is contained. Furthermore, there is provided a honeycomb structure produced from this Fe-Cr-Al stainless steel plate.