Austenitic stainless steel for use when hot
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United States of America Patent
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May 19, 1998
Grant Date -
N/A
app pub date -
Aug 8, 1996
filing date -
Dec 13, 1994
priority date (Note) -
Expired
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Abstract
Austenitic stainless steel for use when hot, the chemical composition of which, by weight, includes from 16% to 25% of Ni, from 16% to 18.5% of Cr, from 0% to 3% of Mo, from 0% to 2% of Mn, from 1% to 3.5% of Ti, from 0% to 1.5% of Al, less than 0.1% of C+N, up to 0.025% of B, the remainder being iron and impurities resulting from the production; the chemical composition additionally satisfying the relations: (0.94.times.Ni-65.times.F)/(1-F).gtoreq.12 and 17.ltoreq.(1.07.times.Cr-1.5.times.F)/(1-F).ltoreq.22 with: F=0.0444.times.Ti+0.0777.times.Al-0.0592.
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