A cold-rolled sheet is provided. The cold-rolled sheet includes a steel substrate with a carbon content C0 between 0.07% and 0.5%, expressed by weight, and a metal pre-coating on at least the two principal faces of the steel substrate. The substrate has a decarburized area on the surface of each of the two principal faces. The depth p50% of the decarburized area is between 6 and 30 micrometers, and p50% is the depth at which the carbon content is equal to 50% of the content C0. The sheet does not contain a layer of iron oxide between the substrate and the metal pre-coating.


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    Title :

    PROCEDE DE FABRICATION DE PIECES D'ACIER REVÊTUES ET DURCIES A LA PRESSE


    Additional title:

    METHOD FOR MANUFACTURING PRESS-HARDENED PARTS
    HERSTELLUNGSVERFAHREN VON BESCHICHTETEN UND IN DER PRESSE GEHÄRTETEN STAHLTEILEN


    Contributors:

    Publication date :

    2023-04-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    French


    Classification :

    IPC:    C21D Veränderung der physikalischen Struktur von Eisenmetallen , MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS / B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B62D MOTOR VEHICLES , Motorfahrzeuge / C22C Legierungen , ALLOYS / C23C Beschichten metallischer Werkstoffe , COATING METALLIC MATERIAL



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