High speed steel
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United States of America Patent
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-
Jun 30, 1981
Issued Date -
N/A
app pub date -
Jan 14, 1980
filing date -
Nov 22, 1976
priority date (Note) -
Expired
status (Latency Note)
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Abstract
There is disclosed a tool steel having a very high wear resistance for cutting purposes which consists essentially of 0.8-1.2 wt. % C, 3.0-6.0 wt. % Cr, up to 40 wt. % W, up to 20 wt. % Mo where W+2Mo=20.0-40 wt. %, up to 15 wt. % Co, not more than about 0.1 wt. % V, balance Fe and normal impurities.
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