Iron-cobalt alloy, in particular for electromagnetic actuator mobile core and method for making same
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United States of America Patent
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Oct 31, 2006
Grant Date -
May 27, 2004
app pub date -
May 11, 2001
filing date -
May 12, 2000
priority date (Note) -
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Abstract
The invention concerns an iron-cobalt alloy, characterised in that it comprises in weight percentages: 10 to 22% of Co; traces to 2.5% of Si; traces to 2% of Al; 0.1 to 1% of Mn; traces to 0.0100% of C; a total of O, N and S content ranging between traces and 0.0070%; a total of Si, Al, Cr, Mo, V, Mn content ranging between 1.1 and 3.5%; a total of Cr, Mo and V content ranging between traces and 3%; a total of Ta and Nb content ranging between traces and 1%; the rest being iron and impurities resulting from production; and in that: 1.23.times.(Al+Mo)%+0.84 (Si+Cr+V)%-0.15.times.(Co%-15).ltoreq.2.1 and in that 14.5.times.. (Al+Cr)%+12.times.(V+Mo)%+25.times.Si%.gtoreq.21. The inventive alloy is useful for making electromagnetic actuator mobile cores.
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