Lean austenitic stainless steel containing stabilizing elements

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United States of America Patent

PATENT NO 9873932
SERIAL NO

14818868

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Abstract

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An austenitic stainless steel composition including relatively low nickel and molybdenum levels, and exhibiting corrosion resistance, resistance to elevated temperature deformation, and formability properties comparable to certain alloys including higher nickel and molybdenum levels. Embodiments of the austenitic stainless steel include, in weight %, up to 0.20 C, 2.0 to 9.0 Mn, up to 2.0 Si, 16.0 to 23.0 Cr, 1.0 to 7.0 Ni, up to 3.0 Mo, up to 3.0 Cu, 0.05 to 0.35 N, up to 4.0 W, (7.5(C))≦(Nb+Ti+V+Ta+Zr)≦1.5, up to 0.01 B, up to 1.0 Co, iron and impurities. Additionally, embodiments of the steel may include 0.5≦(Mo+W/2)≦5.0 and/or 1.0≦(Ni+Co)≦8.0.

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Patent Owner(s)

  • ATI PROPERTIES LLC

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bergstrom, David S Allison Park, US 20 199
Dunn, John J Sarver, US 45 891
Grubb, John F Lower Burrell, US 18 165
Rakowski, James M Allison Park, US 25 282
Stinner, Charles P Gibsonia, US 14 177

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