VACUUM DEGASSED, INTERSTITIAL-FREE, LOW CARBON STEEL AND METHOD FOR PRODUCING SAME

A low carbon, vacuum degassed steel containing columbium, titanium and/or zirconium, having high ductility, no yield point elongation in the hot rolled and cold rolled and annealed conditions. The steel contains from 0.002 to 0.020 percent carbon, up to 0.60 percent manganese, from greater than 0.02...

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Bibliographische Detailangaben
Hauptverfasser:	HOOK R,US, ELIAS J,US
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:	A low carbon, vacuum degassed steel containing columbium, titanium and/or zirconium, having high ductility, no yield point elongation in the hot rolled and cold rolled and annealed conditions. The steel contains from 0.002 to 0.020 percent carbon, up to 0.60 percent manganese, from greater than 0.025 to 0.12 percent columbium, titanium when present from 0.015 to 0.12 percent, zirconium when present from 0.028 to 0.18 percent, up to 0.008 percent nitrogen, up to 0.010 percent total oxygen, up to 0.035 percent sulfur, up to 0.045 percent total aluminum, and balance substantially iron. The steel has extra-deep drawing quality.