Iron-nickel alloy
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United States of America Patent
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Aug 19, 2014
Grant Date -
Feb 19, 2009
app pub date -
Jan 26, 2007
filing date -
Feb 2, 2006
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Abstract
Disclosed is a creep-resistant low-expansion iron-nickel alloy that is provided with increased mechanical resistance and contains 40 to 43 wt. % of Ni, a maximum of 0.1 wt. % of C, 2.0 to 3.5 wt. % of Ti, 0.1 to 1.5 wt. % of Al, 0.1 to 1.0 wt. % of Nb, 0.005 to 0.8 wt. % of Mn, 0.005 to 0.6 wt. % of Si, a maximum of 0.5 wt. % of Co, the remainder being composed of Fe and production-related impurities. Said alloy has a mean coefficient of thermal expansion <5×10<−6>/K in the temperature range of 20 to 200 DEG C.
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