| 摘要 |
Provided is a ferritic stainless steel sheet for casing for urea-SCR, which exhibits excellent corrosion resistance in a urea-SCR environment and improves durability of a casing for urea-SCR. This ferritic stainless steel sheet for casing for urea-SCR contains, in mass%, 0.020% or less of C, 0.01-0.50% of Si, 0.01-0.50% of Mn, 0.040% or less of P, 0.010% or less of S, 0.01-0.20% of Al, 20.5-24.0% of Cr, 0.40-0.80% of Cu, 0.05-0.6% of Ni and 0.020% or less of N, and additionally contains 0.01-0.40% of Ti and/or 0.01-0.55% of Nb, with the balance made up of Fe and unavoidable impurities, while satisfying Ti + Nb × 48/93 ≥ 8 × (C + N) (wherein Ti, Nb, C and N represent the contents (mass%) of the respective elements). |
