METHOD FOR PRODUCTION OF STEEL MATERIAL HAVING EXCELLENT SCALE DETACHMENT

There is provided a steel wire excelling in mechanical descaling performance containing C: 0.05-1.2 mass%, Si: 0.01-0.5 mass%, Mn: 0.1-1.5 mass%, P: no more than 0.02 mass%, S: no more than 0.02 mass%, and N: no more than 0.005 mass%, which is characterized by having a Fe 2 SiO 4 (fayalite) layer in...

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Bibliographic Details
Main Authors TAKEDA, MIKAKO, MINAMIDA, TAKAAKI, SAKAI, HIDENORI, ONISHI, TAKASHI, KOCHI, TAKUYA, KURODA, TAKESHI, MARUO, TOMOTADA
Format Patent
LanguageEnglish
French
German
Published 24.03.2010
Subjects
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
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL
METALLURGY
METALLURGY OF IRON
MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS
PERFORMING OPERATIONS
PUNCHING METAL
ROLLING OF METAL
TRANSPORTING
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Summary:There is provided a steel wire excelling in mechanical descaling performance containing C: 0.05-1.2 mass%, Si: 0.01-0.5 mass%, Mn: 0.1-1.5 mass%, P: no more than 0.02 mass%, S: no more than 0.02 mass%, and N: no more than 0.005 mass%, which is characterized by having a Fe 2 SiO 4 (fayalite) layer in contact with that side of scale formed at the time of hot rolling which faces the steel, said Fe 2 SiO 4 layer being formed immediately on a P-concentrated part that exists at the steel-scale interface and has a maximum value of P concentration no larger than 2.5 mass%.
Bibliography:Application Number: EP20100000032