FERRITE STAINLESS STEEL HAVING SUPERIOR WEAR RESISTANCE AT HIGH TEMPERATURE, PRODUCTION METHOD FOR FERRITE STAINLESS STEEL SHEET, EXHAUST COMPONENTS, HIGH-TEMPERATURE SLIDING COMPONENTS, AND TURBOCHARGER COMPONENTS.

摘要

This ferrite stainless steel having superior wear resistance at high temperature is characterized by containing, in mass%, 0.003-0.02% of C, 0.05-1.0% of Si, 0.05-1.0% of Mn, 0.01-0.05% of P, 0.0001-0.01% of S, 15-18% of Cr, 0.002-0.02% of N, 0.01-0.20% of Al, 1-3% of Cu, 1.7-3% of Mo, 0.4-0.7% of Nb, and 0.0002-0.0030% of B, the remaining portion being Fe and incidental impurities, wherein 0.06 particles/µm2 or more of a Nb-containing deposit exist at a depth of 20 µm from the surface layer.