Al-CONTAINING FERRITIC STAINLESS STEEL MATERIAL EXCELLENT IN FABRICABILITY AND HIGH TEMPERATURE OXIDATION RESISTANCE

To provide an Al-containing ferritic stainless steel material excellent in fabricability and high temperature oxidation resistance.SOLUTION: The Al-containing ferritic stainless steel material excellent in fabricability and high temperature oxidation resistance is provided that contains, by mass%, C:0.025% or less, Si:0.1 to 1.0%, Mn:0.8% or less, P:0.05% or less, S:0.01% or less, Ni:0.5% or less, Cr:16 to 24%, Al:1.0 to 2.6%, N:0.025% or less, Nb:0.05 to 0.6%, B:0.0005 to 0.0060%, and the balance Fe with inevitable impurities, and has average crystal particle diameter of 80 μm or less, and satisfies the formula (1) T/(T+T)≤2.5. T, T, Trepresent area percentages of crystal particles distributed in 15° from respective crystal orientation of , , in a cross section vertical to a sheet thickness direction.SELECTED DRAWING: Figure 1 【課題】二次加工性及び耐高温酸化性に優れるＡｌ含有フェライト系ステンレス鋼材を提供する。【解決手段】本発明は、質量％で、Ｃ：０．０２５％以下、Ｓｉ：０．１〜１．０％、Ｍｎ：０．８％以下、Ｐ：０．０５％以下、Ｓ：０．０１％以下、Ｎｉ：０．５％以下、Ｃｒ：１６〜２４％、Ａｌ：１．０〜２．６％、Ｎ：０．０２５％以下、Ｎｂ：０．０５〜０．６％、Ｂ：０．０００５〜０．００６０％を含有し、残部がＦｅ及び不可避的不純物からなり、平均結晶粒径が、８０μｍ以下であり、Ｔ＜１１１＞／（Ｔ＜００１＞＋Ｔ＜０１１＞）≦２．５の式（１）を満足する、二次加工性と耐高温酸化性に優れるＡｌ含有フェライト系ステンレス鋼材である。Ｔ＜１１１＞、Ｔ＜００１＞、Ｔ＜０１１＞は、板厚方向に垂直な断面において、＜１１１＞、＜００１＞、＜０１１＞のそれぞれの結晶方位から１５°以内に分布する結晶粒が前記断面に占める面積割合を示す。【選択図】図１