FERRITIC STAINLESS STEEL SHEET FOR AUTOMOBILE BRAKE DISK ROTORS, AUTOMOBILE BRAKE DISK ROTOR, AND HOT-STAMPED ARTICLE FOR AUTOMOBILE BRAKE DISK ROTORS

A ferritic stainless steel sheet for an automobile brake disc rotor includes: 0.001 to 0.05 mass% of C; 0.001 to 0.05 mass% of N; 0.3 to 4.0 mass% of Si; 0.01 to 2.0 mass% of Mn; 0.01 to 0.05 mass% of P; 0.0001 to 0.02 mass% of S; 10 to 20 mass% of Cr; one or both of 0.001 to 0.5 mass% of Ti and 0.0...

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Bibliographische Detailangaben
Hauptverfasser:	MATSUHASHI Tooru, YOSHIZAWA Toshiki
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	A ferritic stainless steel sheet for an automobile brake disc rotor includes: 0.001 to 0.05 mass% of C; 0.001 to 0.05 mass% of N; 0.3 to 4.0 mass% of Si; 0.01 to 2.0 mass% of Mn; 0.01 to 0.05 mass% of P; 0.0001 to 0.02 mass% of S; 10 to 20 mass% of Cr; one or both of 0.001 to 0.5 mass% of Ti and 0.01 to 0.8 mass% of Nb; and a balance consisting of Fe and impurities. After a hot stamping treatment, a crystal grain size is in a range from 100 to 200 µm, and precipitates each having a grain size of 500 nm or less are present at a density of 0.01 to 20 pieces per square micrometer.