Lean austenitic stainless steel
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United States of America Patent
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Sep 1, 2015
Grant Date -
Mar 28, 2013
app pub date -
Nov 20, 2012
filing date -
Dec 20, 2007
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Abstract
An austenitic stainless steel composition including relatively low Ni and Mo levels, and exhibiting corrosion resistance, resistance to elevated temperature deformation, and formability properties comparable to certain alloys including higher Ni and Mo levels. Embodiments of the austenitic stainless steel include, in weight percentages, up to 0.20 C, 2.0-9.0 Mn, up to 2.0 Si, 15.0-23.0 Cr, 1.0-9.5 Ni, up to 3.0 Mo, up to 3.0 Cu, 0.05-0.35 N, (7.5(C))≦(Nb+Ti+V+Ta+Zr)≦1.5, Fe, and incidental impurities.
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