Machinable and wear resistant valve seat insert alloy
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United States of America Patent
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-
Oct 26, 1993
Issued Date -
N/A
app pub date -
Oct 16, 1991
filing date -
Apr 15, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A powder composition is suitable for making a valve seat insert having good machinability and high temperature wear resistance. The composition consists essentially of about 0.5%-5% nickel, about 1%-10% molybdenum, less than 0.1% copper, about 0.4%-1.2% carbon, the remainder being iron. The ratio of nickel to molybdenum is about 0.25:1 to 1:1. The nickel and molybdenum are preferably present as a blend of elemental nickel, elemental molybdenum, and a pre-alloyed powder in which nickel and molybdenum are pre-alloyed with iron.
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Cited Art Landscape
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