Iron-nickel alloy having a low coefficient of expansion
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United States of America Patent
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app pub date -
Jul 30, 2001
filing date -
Nov 23, 1994
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Abstract
Iron/nickel alloy having a low coefficient of expansion, the chemical composition of which comprises iron, nickel, manganese, silicon, calcium, magnesium, less than 0.005% of aluminum, less than 0.001% of sulfur, less than 0.01% of oxygen, less than 0.005% of nitrogen, and less than 0.003% of phosphorus, the chemical composition furthermore satisfying the relationship: S.ltoreq.0.02.times.Mn+0.8.times.Ca+0.6.times.Mg
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