Cold tool steel featuring high size stability, wear-resistance and machinability
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United States of America Patent
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May 9, 2000
Grant Date -
N/A
app pub date -
Sep 11, 1998
filing date -
Sep 12, 1997
priority date (Note) -
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Abstract
Cold tool steel having superior machinability, wear-resistance and minimized heat treatment size-change were obtained by specifying components and contents thereof, especially of C, Cr, Si, V and Mo, not by high-temperature soaking. Further, such prehardened cold tool steals as having excellent machinability even after heat-treatment together with minimum size-change were manufactured by further strictly specifying components, particularly of C, Si, Mn, Mo, V, and by specifying heat-treatment conditions.
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