Cold-rolled flat steel product and method for the production thereof

The invention relates to a cold-rolled flat steel product which, though it has high strength values, has a deformability that is characterized by a great elongation to fracture and a good hole-expansion ratio lambdaM. For this purpose, the flat steel product is produced from a steel that consists of...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SEBALD ROLAND, MATTISSEN DOROTHEA, FOLLNER STEFAN, EBEST SIGRUN
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:	The invention relates to a cold-rolled flat steel product which, though it has high strength values, has a deformability that is characterized by a great elongation to fracture and a good hole-expansion ratio lambdaM. For this purpose, the flat steel product is produced from a steel that consists of (in % by weight) C: 0.12 - 0.19%, Mn: 1.5 - 2.5%, Si: > 0.60 - 1.0%, Al: