FERRITIC STAINLESS STEEL FOR AUTOMOTIVE EXHAUST SYSTEM PARTS

PROBLEM TO BE SOLVED: To provide ferritic stainless steel provided with strength, thermal fatigue resistance and oxidation resistance required as those of exhaust system parts used in a high temp. automotive exhaust gas environment of >=700 deg.C. SOLUTION: This steel is the one contg., by weight...

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Bibliographic Details
Main Authors TARUYA YOSHIO, NISHIYAMA YOSHITAKA
Format Patent
LanguageEnglish
Published 31.10.2000
Edition7
Subjects
ALLOYS
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Summary:PROBLEM TO BE SOLVED: To provide ferritic stainless steel provided with strength, thermal fatigue resistance and oxidation resistance required as those of exhaust system parts used in a high temp. automotive exhaust gas environment of >=700 deg.C. SOLUTION: This steel is the one contg., by weight, <=0.015% C, <=1% Si, <=1% Mn, <=0.05% P, <=0.008% S, 8 to 15% Cr, 1 to 3% Cu, <=0.015% N, 0 to 3% Mo, 0 to 1% Ni, 0 to 1% Ti, 0 to 1% Nb, 0 to 1% Zr, 0 to 0.15% Al and one or <= two kinds among Ca, Mg, Y and rare earth elements by 0 to 0.1% in total, and the balance Fe with inevitable impurities.
Bibliography:Application Number: JP19990108867