A HOT-ROLLED STEEL STRIP PRODUCT AND METHOD FOR ITS PRODUCTION

Described is a hot-rolled steel strip product having a tensile strength (Rm) above 1400 MPa and a microstructure that includes at least 90% by volume of martensite. The steel has a composition includes, in percent by weight (wt.-%):C 0.20-0.26Si 0.05-0.5,Mn 0.2-0.8,Cr 0.2-0.6,Ni 0.2-0.5,Al 0.015-0.0...

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Bibliographische Detailangaben
Hauptverfasser:	Nymann, Erik, Lind, Martin, Nilsson, Robin, Gladh, Magnus
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:	Described is a hot-rolled steel strip product having a tensile strength (Rm) above 1400 MPa and a microstructure that includes at least 90% by volume of martensite. The steel has a composition includes, in percent by weight (wt.-%):C 0.20-0.26Si 0.05-0.5,Mn 0.2-0.8,Cr 0.2-0.6,Ni 0.2-0.5,Al 0.015-0.065,Ti 0.005-0.02,B 0.001-0.005,optionally Mo