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

A hot-rolled steel strip product having a tensile strength (Rm) above 1400 MPa and a microstructure comprising at least 90 % by volume of martensite. The steel has a composition comprising, 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 - 0.06...

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Bibliographic Details
Main Authors NYMANN, Erik, GLADH, Magnus, NILSSON, Robin, LIND, Martin
Format Patent
LanguageEnglish
French
German
Published 18.09.2024
Subjects
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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Summary:A hot-rolled steel strip product having a tensile strength (Rm) above 1400 MPa and a microstructure comprising at least 90 % by volume of martensite. The steel has a composition comprising, 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 Cu <0.30,optionally Mo <0.10,optionally Nb <0.01,optionally V <0.04,balance Fe and unavoidable impurities.
Bibliography:Application Number: EP20220818208