Iron-based alloys for welded structural elements, method of manufacturing such elements and structures built therefrom
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United States of America Patent
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Jun 25, 1985
Grant Date -
N/A
app pub date -
Nov 30, 1982
filing date -
Dec 4, 1981
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention relates to iron-based alloys with a low coefficient of expansion and to the uses of these alloys for welded structural elements operating under cryogenic conditions. The alloys according to the invention contain by weight 35 to 39% of nickel, 0 to 20% of cobalt, 0 to 0.25% of silicon, 0 to 0.04% of carbon, 0 to 0.004% of sulfur, 0 to 0.008% of phosphorus, manganese, the remainder being formed by iron and by impurities. They are characterized by the fact that they contain 0.2% to 1.5% of manganese and 0.2 to 0.5% of titanium.
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