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Rolling High Carbon Slab into Hot Band

  • 1.  Rolling High Carbon Slab into Hot Band

    Posted 10-20-2020 09:15
    The company I work for uses 1074 strip in its processes.  ​​I have been informed that the best practice at the start of this process is to take the concast slab directly from the caster to the reheat furnace and then rolling into hot band, to avoid defects from stresses formed when the slab has fully cooled to ambient temperature.  There may be other causes for defects in the slab (surface decarb?).  Others have told me that the slab can be fully cooled to ambient temperature, stored days if not weeks, or shipped offsite to a secondary processor to be reheated and rolled into hot band with no concerns for an increase in defects - cracking in the slab.  I would appreciate your opinions on this and any references to studies that have been conducted on this issue.  Thank you.

    Nathan Parr
    Greenville SC

  • 2.  RE: Rolling High Carbon Slab into Hot Band

    Posted 10-21-2020 12:19

         It is really an interesting question, for which I do not know the answer, however, it would be nice to get to know the best practices in handling high carbon steel semifinished products such as slabs or for example 1080 billets for rails.

    Jose Flores Herrera
    Metallurgist Intern
    Fundicion Lerma
    San Nicolas de los Garza