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Roll for hot rolling having enhanced abrasion resistance and reduced carbide segregation

  • US 6,095,957 A
  • Filed: 01/29/1998
  • Issued: 08/01/2000
  • Est. Priority Date: 06/18/1996
  • Status: Expired due to Term
First Claim
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1. A hot-rolling roll characterized in that the roll comprises an outer layer containing, by weight, C;

  • 2.4-2.9%, Mo;

    3-9%, V;

    3-8% and Nb;

    0.5-4%, and with Mo, Cr and C being controlled within the limitations of both of the following equations (1) and (2) at one time,
    
    
    space="preserve" listing-type="equation">0.27≦

    Mo (%)/Cr (%)≦

    0.7 (1)
    
    
    space="preserve" listing-type="equation">C (%)+0.2·

    Cr (&

    )≦

    6.2 (2)the outer layer further containing as the balance fe and unavoidable impurities.

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