Roll shell material and centrifugal cast composite roll
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United States of America Patent
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May 31, 1994
Grant Date -
N/A
app pub date -
May 7, 1993
filing date -
Sep 12, 1991
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A roll shell, material is composed of C: 1.5.about.3.5%, Si: 1.5% or less, Mn: 1.2% or less, Cr: 5.5.about.12.0%, Mo: 2.0.about.8.0%, V: 3.0.about.10.0%, Nb: 0.6.about.7.0%, and satisfies the following formulae (1) and (2): V+1.8 Nb.ltoreq.7.5 C-6.0 (%) (1) 0.2.ltoreq.Nb/V.ltoreq.0.8 (2) and remainder of Fe and inherent impurities.
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