| 摘要 |
A ferritic stainless steel sheet for EGR coolers includes at least, by mass% C: 0.03% or less, N: 0.05% or less, Si: 0.1% to 1%, Mn: 0.02% to 2%, Cu: 0.2% to 1.5%, Cr: 15% to 25%, Nb: 8 (C + N) % to 1%, A1: 0.5% or less, and Fe and inevitable impurities as the balance, wherein the steel sheet further includes, by mass%, Ti at an amount fulfilling the following formulae (1) and (2), and Cr and Cu are included at amounts fulfilling the following formula (3), Ti - 3N ‰¤ 0.03 ··· (1), 10(Ti - 3N) + A1 ‰¤ 0. 5··· (2), and Cr + 2.3Cu ‰¥ 18 ··· (3). |
