Cast cold rolling roll and its method of manufacture
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United States of America Patent
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Oct 22, 1985
Issued Date -
N/A
app pub date -
Jan 5, 1984
filing date -
Oct 31, 1980
priority date (Note) -
Expired
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Abstract
The composite bimetallic roll for cold rolling obtained by casting comprises a heart metal constituted by a nodular or lamellar cast iron and a case metal constituted by a steel having a chromium content of 8 to 16% and a carbon content of 0.65 to 0.95%. The chromium/carbon ratio is between 11 and 16 and the structure of the case metal is martensitic with a content of residual austenite of less than 10%.
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