A 50 kg/mm2 tensile strength level and an extremely high flangeability were achieved in a developed steel. The steel had a base chemistry of C=0.04%, Mn=0.85%, Nb=0.015%, and S=0.001%, and was processed with a hot rolling finishing temperature of 860 °C and a coiling temperature of 550 °C. This high flangeabilty was attained by reducing S content below 0.002%, as well as reducing carbon content. Elongation results could not be directly correlated to the flangeability of steel. A steel's flangeability has been found to be associated with microvoid distribution in the “as punched” condition. The developed steel exhibited the lowest density, and the smallest size, of microvoid.


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    Title :

    Development of High Strength Hot Rolled Steel to Be Applied for Flanging Deformation


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    International Body Engineering Conference & Exposition ; 1998



    Publication date :

    1998-09-29




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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