The present invention relates to a steel alloy with high energy absorption capacity and good formability, comprising beside inevitable impurities due to smelting and iron the following components in weight percent:C 0.05-0.6%Sum of Cr+2*Ti+3*(Mo+V+Nb)+4*W=2-7%,wherein the structure of the steel alloy comprises beside martensite portions of 10-40 Vol.-% retained austenite, wherein the energy absorption capacity expressed by the product of tensile strength (Rm) and uniform strain (Ag) is higher than 12,000 MPa % and the steel alloy has a minimal tensile strength of 1000 MPa.In addition, the invention relates to a steel tube product with high energy absorption capacity and good formability, which is characterized in that it at least partially consists of such a steel alloy.


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    Title :

    Steel alloy with high energy absorption capacity and tubular steel product


    Contributors:

    Publication date :

    2022-07-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    C22C Legierungen , ALLOYS / B62D MOTOR VEHICLES , Motorfahrzeuge / C21D Veränderung der physikalischen Struktur von Eisenmetallen , MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS / E21B EARTH OR ROCK DRILLING , Erd- oder Gesteinsbohren



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    GROSSE-HEILMANN NIKO / PETERS ANDREAS / ZYLLA ISABELLA-MARIA et al. | European Patent Office | 2020

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    Tubular steel product

    ROSE LEONHARD / KONNEH JERRY MFOSOLEM / TEGETHOFF DIRK | European Patent Office | 2020

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    Energy absorption capacity of graphite-epoxy tubular specimens

    Schultz, Marc / Hyer, Michael / Fuchs, Hannes | AIAA | 2000



    Energy Absorption Capacity of Graphite-Epoxy Tubular Specimens

    Fuchs, H. / Hyer, M. W. / Schultz, M. et al. | British Library Conference Proceedings | 2000