Steel sheet for heat shrink band and manufacturing method thereof
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United States of America Patent
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May 13, 2003
Grant Date -
Jan 31, 2002
app pub date -
Mar 9, 2001
filing date -
Aug 11, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A steel sheet for heat shrink band of the present invention has anhysteretic magnetic permeability of 15,000 or higher at 0.35 Oe and yield stress of 24 kgf/mm.sup.2 or more. The steel sheet can be manufactured by a method comprising the steps of: hot rolling and/or cold rolling a steel containing 0.01 to 0.15% C by weight; annealing the rolled steel sheet at a temperature ranging from 650 to 900.degree. C.; and temper rolling the annealed steel sheet at a rolling reduction rate of 1.5% or less. A CRT made of the steel sheet causes very little color deviation and practically no deformation of the panel surface.
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