PRODUCTION OF HIGH STRENGTH NON-HEAT TREATED STEEL WIRE FOR BOLT, EXCELLENT IN COLD HEADING PROPERTY

PROBLEM TO BE SOLVED: To newly produce a steel wire capable of sufficiently satisfying cold heading property at the time of bolt forming, even if composed of a non-heat treated steel prepared by omitting spheroidizing annealing and further omitting the last quench-and-temper treatment. SOLUTION: A s...

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Bibliographische Detailangaben
Hauptverfasser:	HASEGAWA TOYOFUMI, IDOJIRI HIROSHI, KANESADA YASUYUKI
Format:	Patent
Sprache:	eng
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:	PROBLEM TO BE SOLVED: To newly produce a steel wire capable of sufficiently satisfying cold heading property at the time of bolt forming, even if composed of a non-heat treated steel prepared by omitting spheroidizing annealing and further omitting the last quench-and-temper treatment. SOLUTION: A steel stock, having a composition containing 0.15-0.35% C,