HOT-ROLLED OR COLD-ROLLED STEEL PLATE, METHOD FOR MANUFACTURING SAME, AND USE THEREOF IN THE AUTOMOTIVE INDUSTRY

The invention relates to a hot-rolled or cold-rolled steel plate, characterised in that the composition thereof is, in weight percent: 0.6 % = C = 0.9 %; 17 % = Mn = 22 %; 0.2 % = Al = 0.9 %; 0.2 % = Si = 1.1 % with 0.85 % = Al + Si = 1.9 %; 1.2 % = Cu = 1.9 %; S = 0.030 %; P = 0.080 %; N = 0.1 %; o...

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Bibliographische Detailangaben
Hauptverfasser:	COLIN SCOTT, PHILIPPE CUGY
Format:	Patent
Sprache:	eng ; spa
Schlagworte:	ALLOYS APPARATUS THEREFOR CHEMISTRY ELECTROFORMING ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	The invention relates to a hot-rolled or cold-rolled steel plate, characterised in that the composition thereof is, in weight percent: 0.6 % = C = 0.9 %; 17 % = Mn = 22 %; 0.2 % = Al = 0.9 %; 0.2 % = Si = 1.1 % with 0.85 % = Al + Si = 1.9 %; 1.2 % = Cu = 1.9 %; S = 0.030 %; P = 0.080 %; N = 0.1 %; optionally: Nb = 0.25 %, preferably between 0.070 and 0.25 %; V = 0.5 %, preferably between 0.050 and 0.5 %; Ti = 0.5 %, preferably between 0.040 and 0.5 %; Ni = 2 %; trace elements = Cr = 2 %, preferably = 1 %; B = 0.010 %, preferably between 0.0005 % and 0.010 %; the remainder being iron and impurities resulting from the production. The invention also relates to a method for manufacturing said plate and to the use of said plate in the automotive industry. La presente invención se refiere a una placa de acero laminada en caliente o en frío, caracterizada porque su composición es, en porcentajes ponderados: 0.6% = C = 0.9%; 17% = Mn = 22%; 0.2% = Al = 0.9%; 0.2% = Si = 1.1%; con 0.85% = Al + Si = 1.9%; 1.2% = Cu = 1.9%; S = 0.030%; P = 0.080%; N = 0.1%; opcionalmente Nb = 0.25% y, de preferencia, comprendido entre 0.070 y 0.25%; V = 0.5% y, de preferencia, comprendido entre 0.050 y 0.5%; Ti = 0.5% y, de preferencia, comprendido entre 0.040 y 0.5%; Ni = 2%; trazas = Cr = 2%, de preferencia = 1%; B = 0.010%, y, de preferencia, comprendido entre 0.0005% y 0.010%; el resto es de hierro e impurezas que resultan de la elaboración. Proceso para la fabricación de esta placa, utilización de esta placa en la industria automotriz.