590 N/mm2 grade high-strength hot-rolled steel sheet has been applied to an automotive suspension system, and 780 N/mm2 grade has recently been applied on trial to the same parts. Both of the steels used for the suspension system are required to have good formability, especially high stretch-flangeability. This paper describes the effect of the microstructure of the steel on stretch-flangeability. The results of mill trials have shown that the bainitic-ferrite mono-phase microstructure has the best mechanical properties.


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    Titel :

    780 N/mm2 grade hot-rolled high-strength steel sheet for automotive suspension system


    Weitere Titelangaben:

    Hochfeste Stahlbleche für Fahrwerkskomponenten


    Beteiligte:
    Kashima, T. (Autor:in) / Hashimoto, S. (Autor:in) / Mukai, Y. (Autor:in)

    Erschienen in:

    JSAE Review ; 24 , 1 ; 81-86


    Erscheinungsdatum :

    2003


    Format / Umfang :

    6 Seiten, 10 Bilder, 3 Tabellen, 16 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch





    780 N/mm**2 grade hot-rolled high-strength steel sheet for automotive suspension system

    Kashima,T. / Hashimoto,S. / Mukai,Y. et al. | Kraftfahrwesen | 2003


    High strength cold-rolled steel sheet for automotive applications

    Olsson, K. / Nilsson, K.I. | Tema Archiv | 1988


    Development of 780 MPa grade high strength hot rolled steel sheet

    Tomita,K. / Shiozaki,T. / Urabe,T. et al. | Kraftfahrwesen | 2000


    Development of 780 MPa Grade High Strength Hot Rolled Steel Sheet

    Yoshitake, A. / Tomita, K. / Shiozaki, T. et al. | SAE Technical Papers | 2000