페라이트계 스테인리스강 및 그 제조 방법

본 발명의 일 형태에 따른 페라이트계 스테인리스강은, 질량%로, C: 0.030% 이하, Si: 0.01∼1.5%, Mn: 0.01∼1.00%, P: 0.050% 이하, S: 0.005% 이하, Cr: 15.0∼25.0%, Al: 2.0∼4.0%, Ni: 1.00% 이하, Nb: 0.01∼0.70%, N: 0.030% 이하, B: 0.0003∼0.01%, REM: 0.01∼0.20%를 함유하고, 잔부가 Fe 및 불가피한 불순물로 이루어지고, 표면에 8㎚ 이상 20㎚ 미만의 Al계 산화 피막을 갖는다. A ferritic stainl...

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Bibliographische Detailangaben
Hauptverfasser:	FUJIMURA YOSHITOMO, HAMADA TAKAHITO, HAMADA JUN ICHI
Format:	Patent
Sprache:	kor
Schlagworte:	ALLOYS CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	본 발명의 일 형태에 따른 페라이트계 스테인리스강은, 질량%로, C: 0.030% 이하, Si: 0.01∼1.5%, Mn: 0.01∼1.00%, P: 0.050% 이하, S: 0.005% 이하, Cr: 15.0∼25.0%, Al: 2.0∼4.0%, Ni: 1.00% 이하, Nb: 0.01∼0.70%, N: 0.030% 이하, B: 0.0003∼0.01%, REM: 0.01∼0.20%를 함유하고, 잔부가 Fe 및 불가피한 불순물로 이루어지고, 표면에 8㎚ 이상 20㎚ 미만의 Al계 산화 피막을 갖는다. A ferritic stainless steel in accordance with an aspect of the present invention contains not more than 0.030% of C, 0.01% to 1.5% of Si, 0.01% to 1.00% of Mn, not more than 0.050% of P, not more than 0.005% of S, 15.0% to 25.0% of Cr, 2.0% to 4.0% of Al, not more than 1.00% of Ni, 0.01% to 0.70% of Nb, not more than 0.030% of N, 0.0003% to 0.01% of B, and 0.01% to 0.20% of REM, in percent by mass, and the other part composed of Fe and an inevitable impurity, the ferritic stainless steel including, on a surface of the ferritic stainless steel, an Al-based oxide film having a thickness of not less than 8 nm and less than 20 nm.