Metal treatment – Stock – Ferrous
Reexamination Certificate
2007-08-21
2007-08-21
Yee, Deborah (Department: 1742)
Metal treatment
Stock
Ferrous
C148S326000
Reexamination Certificate
active
10397582
ABSTRACT:
A wrought stainless steel alloy composition includes 12% to 25% Cr, 8% to 25% Ni, 0.05% to 1% Nb, 0.05% to 10% Mn, 0.02% to 0.15% C, 0.02% to 0.5% N, with the balance iron, the composition having the capability of developing an engineered microstructure at a temperature above 550° C. The engineered microstructure includes an austenite matrix having therein a dispersion of intragranular NbC precipitates in a concentration in the range of 1010to 1017precipitates per cm3.
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Maziasz Philip J.
More Karren L.
Pint Bruce A.
Santella Michael L.
Swindeman Robert W.
Akerman & Senterfitt
Gust Andrew C.
UT-Battelle LLC
Yee Deborah
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