HIGH STRENGTH LOW CARBON STEEL WIRE RODS AND METHOD OF PRODUCING THEM

High strength low carbon steel wire rods excellent in the cold drawing property have a composite structure in which an acicular low temperature transformation phase comprising a martensite, bainite and/or the mixed structure thereof that comprises, by weight %, C : 0.02 - 0.30 %, Si : less than 2.5...

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Bibliographische Detailangaben
Hauptverfasser:	KATOH, TAKEHIKO, KATSUMATA, MASAAKI, HOSOGI, YASUHIRO, YUTORI, TOSHIAKI
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMISTRY 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
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Beschreibung
Zusammenfassung:	High strength low carbon steel wire rods excellent in the cold drawing property have a composite structure in which an acicular low temperature transformation phase comprising a martensite, bainite and/or the mixed structure thereof that comprises, by weight %, C : 0.02 - 0.30 %, Si : less than 2.5 %, Mn : less than 2.5 % and the balance of iron and inevitable impurities and that may partially contain retained austenite is uniformly dispersed at the volume ratio of from 10 to 70 % in the ferrite phase, and in which the weight of (C+N) in solution in the ferrite phase is less than 40 ppm.